The expression in terms of x that represents the total amount that Zoe paid is 1.2075x
What is an expression that represents the total amount that Zoe paid?Expression are simply used to illustrate the datathat are given. It should be noted that it's usually represented by the variables given.
From the information, Zoe goes to a restaurant and the subtotal on the bill was x dollars. A tax of 5% is applied to the bill and Zoe decides to leave a tip of 15% on the entire bill.
The expression will be:
= x + (5% × x) + (15% × 1.05x)
= x + 0.05x + 0.1575x
= 1.2075x
Therefore, the expression based on the above will be 1.2075x.
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what is the probability of first drawing a red card, then a jack, and then a black card? do not round your intermediate computations. round your final answer to four decimal places.
The probability of first drawing a red card, then a jack, and then a black card is 0.0612
First we will describe the standard deck of 52 cards in terms of black, red and face cards found in a standard deck
Following is a table of distribution of colored and face card found in a standard deck:
Type Number of cards
1 - 10 40
Black 26
Red 26
Face 12
The numerical cards from digit ( 1 to 10 ) are found in all 4 suits ( Clubs, Diamonds, Spades, and Hearts ). Hence, 10 x 4 = 40
- The entire deck is split in two colors ( Red and Black ) equally. So, the number of Black and Red cards are = 52 / 2 = 26 cards.
- The face cards are of three types ( King, Queen and Jack ). These three face cards are found in each of the 4 suits. Hence, Total number of face cards are = 4 * 3 = 12
- We will now consider the probabilities associated with each type. We will define 3 events and write down their probability as expressed:
Event ( A ): First draw is a red card.
- The probability of this event can be determined with the help of the table given above. There are a total of 26 red card in a standard deck of 52 cards. Hence,
p ( A ) = [ Number of red cards ] / [ Total cards in a deck ]
p ( A ) = [ 26 ] / [ 52 ]
p ( A ) = 1 / 2
- After we make the first draw of a red card. Our deck distribution is changed to Number of Red cards remaining = 25 and total deck now has 51 cards remaining.
- We will define the next event as:
Event ( B ): The second draw is a face card.
- The probability of this event can be determined with the help of the table given above. There are a total of 12 face cards in a standard deck of 52 cards which is now down to 51 cards. Hence,
p ( B ) = [ Number of face cards ] / [ Total cards in a deck ]
p ( B ) = [ 12 ] / [ 51 ]
p ( B ) = 4 / 17
- After we make the first draw of a face card. Our deck distribution is changed to Number of Face cards remaining = 11 and total deck now has 50 cards remaining.
- We will define the next event as:
Event ( C ): The third draw is a black card.
- The probability of this event can be determined with the help of the table given above. There are a total of 26 black cards in the deck. The total number of cards are down to 50 cards only. Therefore,
p ( C ) = [ Number of black cards ] / [ Total cards in a deck ]
p ( C ) = [ 26 ] / [ 50 ]
p ( C ) = 13 / 25
- The entire drawing process consists of 3 events which are dependent on each draw. However, for the overall event to occur i.e drawing a red card , then a face card, and then a black card. We will multiply all three outcomes as follows:
p ( T ) = p ( A ) * p ( B ) * p ( C )
p ( T ) = [ 1 / 2 ] * [ 4 / 17 ] * [ 13 / 25 ]
p ( T ) = [ 26 / 425 ] ≈ 0.0612
Hence we get the required answer.
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Help please!
-8+2(3 + 8) = -4(g + 1)
Answer: -9/2
Let's solve this equation step-by-step.
−8+2(3+8)=−4(g+1)
Step 1: Simplify both sides of the equation.
−8+2(3+8)=−4(g+1)
−8+2(3+8)=(−4)(g)+(−4)(1) (Distribute)
−8+22=−4g+−4
(−8+22)=−4g−4 (Combine Like Terms)
14=−4g−4
Step 2: Flip the equation.
−4g−4=14
Step 3: Add 4 to both sides.
−4g−4+4=14+4
−4g=18
Step 4: Divide both sides by -4.
−4g/−4 = 18/−4
g = −9/2
Jasmine checks rental car rates. She discovers that a midsize car costs $50.00 plus $19.99 per day to rent. Which recursive formula shows the sequence of costs to rent the car for 1 day, 2 days, 3 days, and so on? Responses an=19.99+50.00an−1 where n>1 a n = 19.99 + 50.00 a n − 1 where n > 1 an=50.00+19.99an−1 where n>1 a n = 50.00 + 19.99 a n − 1 where n > 1 a1=69.99an=an−1+19.99 where n>1 a 1 = 69.99 a n = a n − 1 + 19.99 where n > 1 a1=50.00an=an−1+19.99 where n>1 a 1 = 50.00 a n = a n − 1 + 19.99 where n > 1
Recursive relation is [tex]a_{n-1}= 50.00 + 19.99~a_{n}[/tex] where n>1
What do you mean by recursive realtion?
A recursive sequence is one in which terms are defined by reference to one or more previously defined terms.
The recursive formula [tex]a_{n+1}=a_{n}[/tex] + d can be used to find the (n+1)th term of an arithmetic series if you know the nth term and the common difference, d.
It is given that cost of midisze car is $50.00
Rent per day = $19.99
We need to find the sequence of costs to rent the car for 1 day, 2 days, 3 days, and so on.
According to the question:
Cost become = 50.00 + 19.99n where n represents the number of days
Recursive formula become:
[tex]a_{n-1}= 50.00 + 19.99~a_{n}[/tex] where n>1
Therefore, recursive relation is [tex]a_{n-1}= 50.00 + 19.99~a_{n}[/tex] where n>1
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Value of x?
-3(4x + 3)-4(5x + 1) = 79
Answer:
-2.875
Step-by-step explanation:
-12x-9-20x-4=79
-32x-13=79
-32x=92
92/-32= -2.875
Answer:
-23/8 OR 2.875Step-by-step explanation:
Split 「-3(4x + 3)-4(5x + 1)」 out into -3(4x+3) and -4(5x+1):-3(4x+3)= (-3)(4x)+(-3)(3) = -12x-9-4(5x+1)= (-4)(5x)+(-4)(1) = -20x-4Substitute it back to the formula:-12x-9-20x-4= 79 -32x-13= 79 -32x= 79+13 -32x= 92 x= 92/-32 x= -23/8 OR 2.875Luke climbed from an elevation of 23,201 ft up to the summit of k2 which is at 28,251 ft. How many ft did Luke climb?
I need to explain the variable
write an equation
and solve it
The number of ft that Luke climbed, given the elevation he started from, and the summit, is 5, 050 ft
How to find the feet climbed?The number of feet that Luke climbed, can be found by the formula:
Number of feet climbed = Summit of K2 - Luke's starting elevation
Summit of K 2 = 28, 251 ft
Luke's starting elevations = 23, 201 ft
Elevation climbed by Luke was therefore:
= 28, 251 - 23, 201
= 5, 050 ft
In conclusion, the total elevation that Luke climbed from his starting point to the summit of K2 is 5, 050 ft.
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A bag contains 3 red, 6 blue, 5 purple, and 2 orange marbles. One marble is selected at random. What is the probability that the marble chosen is blue?.
Given that there are six blue marbles in the bag out of a total of 16, there is a 3/8 chance that the marble selected will be blue.
What is probability?The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a proposition is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.
Here,
Total number of marbles in bag,
=3+6+5+2
=16 marbles
Number of blue marbles=6
Probability of selecting blue marbles,
=6/16
=3/8
The probability that the marble chosen is blue will be 3/8 as the bag contains 6 blue marbles when total number of marbles is 16.
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trey walks 12 miles in 3 hours which graph has the slope that best represents this rate?
The graph of the proportional relationship d = 4t is given by:
Graph B.
What is the proportional relationship?The general model of a proportional relationship is given as follows:
y = kx.
Meaning that it's graph is that of a linear function, in which:
The slope is the constant of proportionality k.The intercept is of zero.The relation between velocity, distance and time is given as follows:
v = d/t.
Then the equation for the distance as a function of time is given as follows:
d = vt.
Meaning that the slope is the velocity.
Trey walks 12 miles in 3 hours, hence the slope of the graph is of:
v = 12/3 = 4 miles per hour.
Among the options given by the image shown at the end of the answer, the correct option is:
Graph B.
As it goes through point (4,16).
Missing InformationThe options are given by the image shown at the end of the answer.
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quadrilateral abcd is a rhombus with perimeter 52 meter. the length of diagonal ac is 24. what is the are in square meters of rhombus abcd?
The area of the Rhombus ABCD is 1.2 square meter.
What is Rhombus?
A quadrilateral with four equal-length sides is known as a Rhombus in plane Euclidean geometry. Another name for this shape is an equilateral quadrilateral because all of its sides are equal in length.
Let ABCD be the given Rhombus of Perimeter = 52 cm.
Since all the sides are equal to each other.
Therefore, each side of Rhombus measures = 13 cm
So,
AD = CD = 13 cm and AC = 24 cm.
Area of the triangle ACD = √[ s (s - a) (s - c) (s - d) ] ….. Heron’s Formula.
where s = semi-perimeter,
a, c, and d are side measures.
s = (1/2) [ 13 + 13 + 24 ] = 25
Area (A) = √[ 25 (25 – 13) (25 – 13) (25 - 24) ] = 60
Hence Area of the entire Rhombus = 2 * 60 = 120 cm²
Convert 120 cm^2 into meter square
⇒ 120 cm^2 = 1.2 m^2
Hence, the area of the Rhombus ABCD is 1.2 square meter.
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a cookie store sells 6 varieties of cookies. it has a large supply of each kind. (a) how many ways are there to select 15 cookies? (b) how many ways are there to select 15 cookies if at least three must be chocolate chip? (c) how many ways are there to select 15 cookies if at most 2 can be sugar cookies? (d) how many ways are there to select 15 cookies if at most 2 can be sugar cookies and at least 3 must be chocolate chip?
The tottal number of ways to selct 15 cookies is 15504 and the ways are there to select 15 cookies if at least three is 6188.
What is combination?
A combination is a choice made in mathematics from a group of different elements when the order of the choices is irrelevant (unlike permutations). For instance, if three fruits, such as an apple, an orange, and a pear, are supplied, there are three possible pairings of the two: an apple and a pear. Formally speaking, a k-combination of a set S is a subset of S's k unique components. In other words, two combinations are the same if and only if they have the same members. (It is not important how the individuals in each set are arranged.) The quantity of k-combinations for a set with n components
we have to select 15 Cookies from 6 varieties so we can think an n₁+n2+n3+n4 + N5 +N6=15 with each o≤ni ≤15
C([tex]\frac{20}{12}[/tex]) = 15504
NOW we have One category is fixed let K Chocolate chips are Selected in I way The A we have to (15-K) Cookies from the varieties
C([tex]\frac{19-k}{15-5}[/tex])
So for k=0, C1=3876
k=1, C2 =3060
k=2, C3=2380
So C =C1+C2+C3=9316.
So the number of ways 15504-9316= 6188.
Hence, The tottal number of ways to selct 15 cookies is 15504 and ways are there to select 15 cookies if at least three is 6188.
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The density of some steel is 7.92/cm³
What is the mass of 60cm³ of this steel?
Give your answer to 1 d.p.
Answer:
below
Step-by-step explanation:
density * volume = mass
7.92 g / cm^3 * 60 cm^3 = 475.2 g
what is the difference between a convex set and a convex function with respect to linear programming?
A real-valued function defined on an interval with the property that its epigraph—the collection of points on or above the function's graph—is a convex set—is said to be convex. The challenge of minimizing convex functions over convex sets is the subject of the optimization discipline known as convex minimization.
What is linear programming?A mathematical model whose needs are expressed by linear connections can be optimized using a technique known as linear programming. A particular type of mathematical programming is linear programming. When a linear function is subjected to various constraints, it is maximized or minimized using the mathematical modeling technique known as linear programming. In business planning, industrial engineering, and—to a lesser extent—the social and physical sciences, this method has proven helpful for directing quantitative decisions.
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Multiply the following polynomials. Write the simplified answer in descending order. Use the ^ (shift + 6) to indicate exponents.
DO NOT add spaces between any numbers or characters. For example: (x+2)(x+3) = x^2+5x+6.
(2x - 3y)(4x - y)
Answer:
8x^2-14xy+3y^2 (I think)
Step-by-step explanation:
You probably don't need it now but like here
Refer to the previous question, the physics student used the regression model to predict that a force of 377.28N would be required to stretch the spring by 15cm. Remarkably, his prediction was horribly wrong. Can you explain why? (Check all that apply)
A. Correlation does not imply causation.
B. He made a prediction outside of the range of forces observed.
C. He made a prediction outside of the range of stretched distances measured.
D. He had outliers or influential points in his data.
E. None of the above
The physics student predicted that a force of 377.28N would be needed to stretch the spring by 15 cm using the regression model.
The relevant points from the regression model are
B. He predicted something that was outside the range of forces seen.
C. He predicted something that was outside the range of stretched distances that were observed.
D. His data contained outliers or significant points.
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Question
What is another way to write the expression t⋅(14−5)?
helpp meee
14t-5t is another way to write the expression t⋅(14−5)
What is Number system?A number system is defined as a system of writing to express numbers.
The given expression is t(14-5)
An expression is combination of variables, numbers and operators.
t times of fourteen minus five
Here t is the variable
We need to find other way to write this expression
t(14-5)
Apply distributive property
14t-5t
9t
Hence, 14t-5t is another way to write the expression t⋅(14−5)
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Mihir has 14,203 beads. He uses 36 beads to
make one necklace. How many necklaces can
he make?
And I also need the remainder
Answer:
394.527
Step-by-step explanation:
Divide the total number of beads by the number he needs to make each necklace and you will have your answer.
(I NEED HELP URGENTLY, THIS IS DUE TOMORROW!)
The table represents a proportional relationship.
A. Find the constant of proportionality:
B: Write a equation to represent the relationship. Equation: y=
The constant of proportionality is 1/3, and the equation is y = (1/3)x represents the relationship.
What is the constant of proportionality?The value of the proportionality constant is determined by the type of proportion between the two specified values.
Proportional relationships are written in the form y = kx
where k is the constant of proportionality.
As per the given table, the constant of proportionality will be
k = (1 - 2/3)/(3-2)
k = (1/3)/1
k = 1/3
So, the equation is y = (1/3)x.
Thus, the constant of proportionality is 1/3, and the equation is y = (1/3)x represents the relationship.
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How much sales taxes will cody have in his pay of purchase
Answer:
Where is the equation? It's ok but still.
Step-by-step explanation:
-2/3^8
two thirds to the power of eight
pls help me
Answer: i think either 256/6561 or -256/6561
Step-by-step explanation:
Question is below! Mark brainliest!
Answer: (-84, 272)
x = -84
y = 272
Hope this helps!
Answer:
Below
Step-by-step explanation:
-6x - 2y = - 40 <====multiply this entire equation by -1 to get:
6x + 2y = 40 <===== then add it to the second equation
-7x -2y = -44 to get:
-x = -4
so x = 4 use this value in one of the equations to compute y
-6(4) - 2y = -40
-2y = -16
y = 8 (4,8)
Monica deposits $200 into a savings account that pays a simple interest rate of 3.7%. Paul deposits $300 into a savings account that pays a simple interest rate of 2.9%. Monica says that she will earn more interest in one year because her interest rate is higher, is she correct? justify your response.
Paul earns more interest than Monica does.
What is simple interest?Simple interest can be defined as a form of interest in which the percent rate is applied on the same principal for a given period of time.
Given that,
Money deposited by Monica is $200 at simple interest of 3.7%.
Money deposited by Paul is $300 at simple interest of 2.9%.
The expression to calculate simple interest is given as,
(P × r × t)/100
Substitute the corresponding values to obtain the simple interest for both cases as follows,
Interest gained by Monica is (200 × 3.7 × 1)/100 = $7.4.
Interest gained by Paul is (300 × 2.9 × 1)/100 = $8.7.
Hence, monica is not correct as the interest earned by Paul is greater than that of monica.
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72 +1-5 x 3; value: 135
Answer:
58
Step-by-step explanation:
72 + 1 - 5 x 3
= 72 + 1 - 15
= 73 - 15
= 58
show that differentiation reverses parity: if f is even, then f' is odd, and if f is odd, then f' is even. hint: differentiate f (-x ).
Differentiation reverses the parity of a function, means if f(x), is an even function, then its derivative f'( x ) is odd which is true i.e f(x) is even function implies f'(x) is odd and if f(x) is odd function implies f'(x) is even .
First, let's we start with the definition of even and odd functions.
f is even if and only if f(x) = f(-x) --(1)
f is odd iff f(x) = -f(-x) ---(2)
If f is even and differentiating equation (1) we get,
f'(x) = f'(-x)× (-1) = -f'(-x).
f'(x) = - f'(-x).
Since, f'(x) is some function, then let
g(x) = f'(x) So, we see g(x) = -g(-x) which shows that the derivative of an even function is an odd function.
If f is odd then: f(x) = -f(-x)
differentiating above function with respect to x we get ,
f'(x) = -f'(-x)× (-1 ) = f'(-x).
Let g(x) = f'(x), then g(x) = g(-x) which shows that the derivative of an odd function is an even function.
Hence, Differentiation reverses the parity is hold.
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what are three equations that are equivalent to 60% of 25
The equation which is equivalent to 60% of 25 is x = 0.6 * 25
1. Equivalent equations: Equivalent equations are algebraic equations that are having identical roots or solutions. By adding or subtracting the same number or expression to both side of an equation we get an equivalent equation. Also by multiplying or dividing both sides of an equation by the same non zero number we get equivalent equation.
2. How to find equivalent equation : Steps to find weather the equations are equivalent are:
Distribute the coefficients Combine any like term on both side.Arrange the term in same order.If all the terms in two expressions are same then the equations are equivalent.An equation is used to show the relationship between variables, numbers.
Let x represent the value of 60% of 25. Hence:
x = 60% of 25
x = 0.6 * 25
Hence the equation which is equivalent to 60% of 25 is x = 0.6 * 25
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- Clare removed marbles from a container of
water. When she removed 2 marbles, the
water level was 80 ml. When she removed
4 more marbles, the water level was 40 ml.
Write an equation for the water level y after
x marbles are removed.
Answer:
y = 100 - 10x
Step-by-step explanation:
Let y₀ be the original water level before any marbles were removed
Let y = water level after x marbles are removed.
Let d be the water level drop for every marble removed
Then we have the general equation:
y = y₀ - x.d
We have to find d and y₀
So we get one equation for the water level after removal of 2 marbles
80 = y₀ - 2d [1]
After 4 more marbles were removed, the water level drops to 40ml. That means for 4 marbles removed, the water level drops from 80 to 40. So drop in water level for 4 marbles = 80-40 = 40ml
For each marble then, water level drop = 40/4 = 10ml. This is the value of d
Plug this value of d into [1] to get the original water level y₀
80 = y₀ - 2( 10)
80 = y₀ - 20
100 = y₀
or,
y₀ = 100
So original water level is 100ml and the equation for water level after x marbles are removed is
y = 100 - 10x
Find the slope of the line that passes through each pair of points.
(5, 7), (1, -3)
Answer:
5/2 or 2.5
Step-by-step explanation:
Slope is rise/run. We take the difference of the y-coordinates and divide it by the difference of the x-coordinates.
From this, we get [tex](7--3)/(5-1)[/tex], or [tex]10/4[/tex], which can be simplified to 5/2, or 2.5.
what is the area of the largest rectangle with lower base on the x axis and upper vertices on the curve y
4 square units will be the area of the largest rectangle.
Given,
First, let's build a rectangle ABCD, where A is the point at the bottom right corner and B,C, and D are the points designated in accordance with A.
Now,
Let A = (p, 0)
B = (-p, 0)
C = (-p, 3 - p²)
D = (p, 3 - p²)
Then the area of rectangle is given as: BA×AD
= 2p × 3 - p²
A = 6p - 2p³
Taking the derivative with respect to p, we have
A' = 6 - 6p²
Now,
A' =0
⇒ 6 - 6p² = 0
⇒ 6p² = 6
⇒ p² = 1
Since, we have to find the greater area, therefore we will take p = 1.
Now, substituting the value of p in (A), we have
Greater area = A= 6 - 2 x 1 = 4 square units
Therefore,
The area of the largest rectangle should be 4 square units.
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Question is incomplete. Completed question is given below;
What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y = 3 − x2?
what is $639 with a markup of 10%
Answer:
$63.90
Step-by-step explanation:
cost = $639
markup = 10%
cost * markup = $63.90
Diego states that diagonal WY bisects angles ZWX
and ZYX. Is he correct? Explain your reasoning.
The given statement that Diagonal WY bisects angles ZWX and ZYX has been proven below to be true.
How to prove bisection of angles?Bisection of an angle is simply defined as dividing an angle into two equal parts.
We are given that Diagonal WY bisects angles ZWX and ZYX.
Now, from the image attached, we can see that side XY is congruent to side ZY and so; XY ≅ ZY.
Similarly, XW is congruent to ZW and as such; XW ≅ ZW
Since XY is congruent to ZY and XW is congruent to ZW, then the statement that diagonal WY bisects angles ZWX and ZYX is true
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bailey has 5 skirts, 9 blouses, and 8 pairs of shoes. how many different skirt-blouse-shoe outfits can she wear? (assume that each item matches all the others, so she is willing to wear any combination.)
There are 360 different skirt-blouse-shoe outfits can she wear.
What is outfits?
A group of clothes that have been specifically chosen or designed to be worn together is known as an outfit. The term "outfit" can also refer to a business, an association, or a team of people who collaborate frequently. It can be used as a verb to mean "provide with the necessary gear."
A dress is different from a blouse and a skirt! So I'll rephrase this as how many ways can she dress, to wear one blouse, one skirt and one pair of matching shoes.
You just multiply the number of blouses, the number of skirts, and the number of pairs of shoes;
= 5*9*8 = 360
Hence, there are 360 different skirt-blouse-shoe outfits can she wear.
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The probability of getting a six, when you are tossing a coin is ?
Solution needed ~
Answer: The possible outcomes are — 1, 2, 3, 4, 5, and 6. The probability of getting any of the outcomes is 1/6
Step-by-step explanation: