Answer:
1 x $50, 1 x $5 and 4 x $2
Step-by-step explanation:
This is in dollars, and I am absolutely stumped on how to do it in pounds. That would be the solution however, if it were to be in dollars.
Apologies.
Marissa subtracted a negative number from a positive number. Her result was negative. Is that reasonable
Answer:
the result is a positive number not a negative number
Step-by-step explanation:
a - ( -b)
We know that subtracting a negative is like adding
a+b
This would result in a positive number
Answer:
No.
Step-by-step explanation:
Because it is a double negative, the difference will become positive.
For instance, 6 - (-4) = 10
(The subtraction and negative signs will become positive instead).
1. Which of the following equations has a solution of x = -5? Equation A------> 16x-7=11x-32 Equation B------> -4x- 10=2x+20 a. Equation A b. Equation B c. Both A and B d. Neither A nor B
Answer:
C
Step-by-step explanation:
Equation A
16x - 7 = 11x - 32
(16x - 7) - 11x = (11x - 32) -11x
5x - 7 = -32
(5x - 7) + 7 = (-32) + 7
5x = -25
(5x)/5 = (-25)/5
x = -5
Equation B
-4x - 10 = 2x + 20
(-4x - 10) - 2x = (2x + 20) - 2x
-6x - 10 = 20
(-6x - 10) + 10 = (20) + 10
-6x = 30
(-6x)/-6 = (30)/-6
x = -5
Both Equation A and Equation B have a solution of -5.
the area of a triangle 17.5 square meters. The height of the triangle is 3 meters less than twice it’s base. the base of the triangle is x meters
Answer :
Given that the base of the triangle is x m, the height is 3m less than twice it's base then the height will be represented by the equation:
(2x-3) m
Thus the area will be:
Area=1/2bh
Area=1/2x(2x-3)=17.5
x^2-1.5x=17.5
Writing the above equation is quadratic form of ax^2+bx+c=0 we get:
x^2-1.5x-17.5=0
PLEASE HELP ASAP! IT'S EASY WORD PROBLEM!!!!!!!! My computer can download a movie in 5 hours. If I install an extra processor it can download the movie in 4 hours. How long, working alone, would it have taken the new extra processor to download the movie?
Answer:
t = 2,22 h
Step-by-step explanation:
At the beginning with the first processor, we download in 5 hours the whole movie, then in 1 hour, that processor downloads 1/5 of the movie.
If with the two processors we download the movie in 4 hours in 1 hour we download 1/4 of the movie.
In 1 hour with the two processors, we get 1/4, and in 1 hour with the old processor we get 1/5
Then in 1-hour the old processor plus contribution of the new one will download 1/4 of the movie or
1/5 + x = 1/4
x = 1/4 - 1/5
x(h) = 5 + 4 /20 x = 9/20 or 0,45 of the movie in 1 hour
Working along the new processor will do 0,45 ( 9/20) in 1 hour, to finish the whole movie it will need to download 11/20
If in 1 hour download 9/20
x 11/20
x(r) = (11/20) / (9/20) = 11/9 x(r) = 1,22 (h)
Then total time for the new processor to download the movie is:
t = 1,22 + 1
t = 2,22 h
Stevie and Michael share their profit in a ratio 3:5. Stevie gets £120 more than Michael. How much profit did they make altogether? Please help
Answer:
Altogether, Stevie and Michael made £480
Step-by-step explanation:
Since Stevie gets £120 more than Michael, Stevie gets the bigger ratio which is 5 and Michael gets the ratio 3
a:b=ax+bx
Stevie share =ax
Michael share=by
5:3=5x+3x
Stevie profit=Michael profit
*Stevie gets £120 more
5x+120=3x
5x-3x=120
2x=120
x=120/2
=60
x=60
Stevie=ax
=5*60
=£300
Michael=bx
=3*60
=£180
Altogether,
They made a profit of £180+£300
=£480
Please help I will give out brainliest
Answer:
Invariant points = 0
Step-by-step explanation:
When a point (h, k) is translated by a vector [tex]\binom{x}{y}[/tex], rule to be followed,
(h, k) → [(x + h), (y + k)]
Following this rule translated vertices of the rectangle OABC by a vector [tex]\binom{1}{3}[/tex] will be,
O(0,0) → O'(1, 3)
A(3, 0) → A'[(3 + 1), (0 + 3)]
→ A'(4, 3)
B(3, 3) → B'[(3 + 1), (3 + 3)]
→ B'(4, 6)
C(3, 0) → C'[(3 + 1), (0 + 3)]
→ C'(4, 3)
Therefore, every point on the perimeter of the square will get changed.
Number of invariant points = 0
someone help me asap
Answer:
43.3 m
Step-by-step explanation:
you can use Tangent and calculator or table to find it.
tan ∅ = opp/adj
tan 61° = r/24
1.804 = r/24
r = 1.084 * 24 = 43.297 m
r = 43.3 m
I need help ASAP! PLEASEEEE
Answer:
a) (i) 14.6cm (3 s.f.)
(ii) 77.6° (1 d.p.)
b) (i) see 4th picture
(ii) 16.3cm² (3 s.f.)
Step-by-step explanation:
Please see the attached pictures for full solution.
4. Write the equation of the line represented by the following table (2 point):
ху
-3 100
-2 200
-1 300
0 400
1
500
2 600
3
700
The Empire State Building in New York City is 1250 ft tall. What is the
distance from the top of this building to the horizon to the nearest mile? (Hint: 5280 ft 1 mi; radius of Earth 4000 mi)
Answer:
33 miles
Step-by-step explanation:
The illustration forms a right angled triangle. The opposite side of the triangle is where we are looking for . The adjacent side is the radius 4000 miles.
5280 ft = 1 mile
735 ft = ? miles
cross multiply
735/5280
miles = 0.13920454545 miles
The hypotenuse side is the height of the building + 4000 miles = 0.140 + 4000 = 4000.14 miles
using Pythagoras theorem
c² = a² + b²
c = 4000.14
a = 4000
4000.14² = 4000² + b²
b² = 4000.14² - 4000²
b² = 16001120.0196 - 16000000
b² = 1120.0196
b = √1120.0196
b = 33.4666938911
b = 33 miles
help me is due today. I will give brainliest if you answer first and if it is correct;)
Answer:
a) is correct3n + 5
1. Substitute the numbers
3(5) + 5 = 15 + 5 = 20
2. Substitute the second number
3(6) + 5 = 18 + 5 = 23
b) Numbers are 8 and 16.This is because I realized I got the number of 4 last because I did 1*2 = 2.
Then I did 2*2 = 4.
So you have to multiply by two to get the next number. Or you can put it to the 4th or 5th exponent of 2.
1. 1
2. 1*2 = 2
3. 2*2 = 4
4. 4*2 = 85. 8*2 = 16A student takes a 48 question multiple choice quiz. The student is unprepared, so they guess on every question. The probability of guessing a correct answer is 1/4. Find the mean and standard deviation for the random variable
Answer:
[tex]Mean = 12[/tex]
[tex]Standard\ Deviation = 6[/tex]
Step-by-step explanation:
Given
Number of questions, n = 48
Probability of correct answer, p = 1/4
Required
- Find the mean
- Find the standard deviation
Using probability notations;
n = 48 and p = 1/4
Mean is calculated as follows;
[tex]Mean = np[/tex]
Substitute 48 for n and 1/4 for p
[tex]Mean = 48 * \frac{1}{4}[/tex]
[tex]Mean = \frac{48}{4}[/tex]
[tex]Mean = 12[/tex]
The Mean is 12
Calculating Standard Deviation (SD)
[tex]SD = \sqrt{np(1-p)}[/tex]
Substitute 48 for n and 1/4 for p
[tex]SD = \sqrt{48 * \frac{1}{4}(1-\frac{1}{4})}[/tex]
Solve the expression in the bracket
[tex]SD = \sqrt{48 * \frac{1}{4}(\frac{4-1}{4})}[/tex]
[tex]SD = \sqrt{48 * \frac{1}{4}(\frac{3}{4})}[/tex]
Open Bracket
[tex]SD = \sqrt{48 * \frac{1}{4}*\frac{3}{4}}[/tex]
[tex]SD = \sqrt{\frac{48 * 1 * 3}{4}}[/tex]
[tex]SD = \sqrt{\frac{144}{4}}[/tex]
[tex]SD = \sqrt{36}[/tex]
Take Square Root of 36
[tex]SD = 6[/tex]
The standard deviation is 6
1. Irene is covering a flowerbed with mulch to protect the flowers. The flowerbed is made of
a semi-circle, a rectangle and a right-angle triangle as shown below.
3 m
2 m
4 m
I
a) Calculate the total area of the flowerbed. Show your work.
b) If a bag of mulch covers 5 m?, determine how many bags should be purchased in order
to cover the flowerbed. Show your work.
what is the fraction of 80/100=
Answer:
[tex] \frac{80}{100} = \frac{4}{5} [/tex]
6y + 3 + (2y + 3) = please help me
Answer:
y = -3/4
Step-by-step explanation:
1. Simplify all terms - 8y + 6 = ?
2. Set to two sides - 8y = -6
3. Solve - y = -6/8 = -3/4
Hope this helps:)
HALPPPPP Let g(x) = 2x and h(x) = x2 + 4. Evaluate each expression: g(-2) + h(4)
2. Solve by factoring?
a) x2 + x - 20 = 0
b) x = 36
c) *+ 12x = -36
d) x = 10x
Answer:
Step-by-step explanation:
a :x²+x-20 = 0 to factor we can calculate the dicriminant we get 81 so we have two solutions after factoring using the dicriminant we get : (x+5) (x-4) so x= 4 or x= -5 b :x= 36 x-36 = 0 x-6²=0(√x+6)(√x-6) = 0 √x = 6 or √x= -6 ( impossible for real numbers) x= 6² x= 6d: x= 10x x-10x=0 x(1-10) = 0 -9x = 0 x= 0
The shape of a ball is circle true or false
Answer:
False
Step-by-step explanation:
A ball is a three dimensional object and it is spherical in shape.
Answer:
A ball is spherical
it's shaped like a sphere
Help!! Question on probability. Wi give brainliest!!
Melody randomly selected two apples without replacing the first apple from the crate containing 10 granny Smith apples, 14 Red delicious apples, four golden delicious apples, and 18 Braeburn apples. What is the probability that Melody selected a golden delicious apple first and a granny Smith apple second?
Answer:
[tex]P = \frac{5}{282} = 0.0177[/tex]
Step-by-step explanation:
First we need to find the total amount of apples in the crate:
Total = 10 + 14 + 4 + 18 = 46 apples
The probability of the first apple being a golden delicious apple is the number of those apples over the total number of apples:
[tex]P(golden) = \frac{N(golden)}{N(total)}[/tex]
[tex]P(golden) = \frac{4}{48} = \frac{1}{12}[/tex]
Then, the probability of the second apple being a granny Smith apple is the number of those apples over the total number of apples, but now the total number of apples is one less, because one apple was removed from the crate:
[tex]P(granny) = \frac{N(granny)}{N(total)-1}[/tex]
[tex]P(granny) = \frac{10}{47}[/tex]
The final probability we want is the product of those two probabilities:
[tex]P = P(golden) * P(granny) = \frac{1}{12} \frac{10}{47} = \frac{10}{564} = \frac{5}{282}= 0.0177[/tex]
Help I must get this correct and I will mark you a brainllest
Answer:
The correct option is 1.
Explanation:
The correct option is one because it means X is perpendicular to A and X is perpendicular to B.
If the two lines are perpendicular to a same line, then both lines are parallel to each other.
Here X⊥A and X⊥B. So, A║B.
On a coordinate plane, 2 lines are shown. Line M N goes through (negative 4, 8) and (negative 4, negative 6). Line K L goes through (negative 8, 2) and (6, 2). How are lines KL and MN related?
Answer:
Perpendicular lines
Step-by-step explanation:
MN: (-4, 8) and (-4, -6), This line parallel to y-axis as as x-value doesn't change
KL: (-8, 2) and (6, 2), This line is parallel to x-axis as y-value doesn't change
The given lines are perpendicular as one is parallel to x, another one is parallel to y
Vikas is the head of student council this year at his high school in London. He is responsible for planning the annual graduation trip to Canada's Wonderland. The students will spend one full day at the park and return late that evening. The school has rented a bus for transportation. The entry fee into the park is $50 and the bus costs $600. Write an equation to relate the cost, C, in dollars to the number of student, s, who participate in this fun trip. The total cost of the trip was $2750. How many students did Vikas recruit for this trip? Vikas receives a free trip if he is able to fill 90% of the bus. The bus has a seating capacity of 46 seats. Did Vikas receive his free trip? Show your work.
Answer:
The equation is C = 50s + 600. If C = 2750 we can write:
2750 = 50s + 600
2150 = 50s
s = 43 so the amount of students is 43.
For the last question, 90% of 46 = 0.9 * 46 = 41.4. Since 43 > 41.4, Vikas received his free trip.
What shape is produced when slicing a hexagonal prism perpendicular to the base?
Answer:
hexagonal shape
Step-by-step explanation:
i am small child from American
sorry for answer
I'm 10 year old
I am born in Nepal
but develop in America
A dresser is normally priced at $870. This weekend however, there is a sale where everything is 15% off. If the sales tax on items is 11.6%, what would be the total cost of the dresser?
Answer:
$825.28
Step-by-step explanation:
First, we need to calculate the 15% off sale:
870(0.85) = 739.50
Now, we will calculate and add on the sales tax:
739.50(1.116) = 825.28
So, the final price of the dresser will be $825.28
Hence, the total cost of the dresser is $ [tex]15.138[/tex].
What is the percentage?
Percentages are generally defined as a ratio of any value to the whole value multiplied by [tex]100[/tex].
The symbol used to represent the percentage is %. Percentage means a number or a ratio represented in the form of fractions of [tex]100[/tex]. It is represented using the percentage sign ‘%’.
Here given that,
A dresser is normally priced at $[tex]870[/tex]. This weekend however, there is a sale where everything is [tex]15[/tex]% off. If the sales tax on items is [tex]11.6[/tex]%,
Firstly we will calculate the [tex]15[/tex]% off sale is
[tex]15[/tex]%[tex]=\frac{15}{100}\\\\[/tex]
[tex]15[/tex]%[tex]=0.15[/tex]
So,[tex]870(0.15) =130.5[/tex]
Then,
[tex]\frac{11.6}{100}=0.116[/tex] %
The sales tax on items is [tex]11.6[/tex]% is
[tex]130.5(0.116)=15.138[/tex] $
Hence, the total cost of the dresser is $ [tex]15.138[/tex].
To know more about the percentage
https://brainly.com/question/13244100
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Using the discriminant, how many real solutions does the following quadratic equation have? X^2+6x+10=0
Answer: No real solutions
Step-by-step explanation:
The discriminant can tell you how many solutions a quadratic equation has. The formula is b²-4ac. This also comes from the quadratic equation.
6²-4(1)(10)
36-40
-4
Since the discriminant is less that 0, there are no roots.
help me please :( ill give u brainnlyyyyyyy :DDD
Answer:
180 grams
Step-by-step explanation:
2 people = 5 ounces
6 people= 5*3= 15 ounces
1 ounce= 28 grams
15 ounces= 15*28 grams= 420 grams
There is 240 grams already on the weight, so
420- 240= 180 grams more of diced onions are required
Determine what type of model best fits the given situation: Principal P is invested at an annual interest of rate r, compounded k times a year for t years.
A. exponential
B. none of these
C. quadratic
D. linear
The model best fits the given situation will be exponential. Then the correct option is A.
What is compound interest?Compound interest is the interest on a loan or deposit calculated based on the initial principal and the accumulated interest from the previous period.
We know that the compound interest is given as
A = P(1 + r)ⁿ
Where A is the amount, P is the initial amount, r is the rate of interest, and n is the number of years.
If the Principal P is invested at an annual interest of rate r, compounded k times a year for t years.
Then the equation will be given as,
[tex]\rm A = P(1+ r)^{kt}[/tex]
Then the correct option is A.
More about the compound interest link is given below.
https://brainly.com/question/25857212
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What is the value of
–8(17-12)
-2(8-(-2))
?
-4
-2
оооо
2
4
,
"If you did a 6 feet hole, how deep is the hole"?
Answer:6 ft
Step-by-step explanation:
Answer:
6ft
Step-by-step explanation:
A circle has a circumference of 18. It has an arc of length 6.
What is the central angle of the arc, in degrees?
Answer:
120 cm. .here u go..
Step-by-step explanation:
Circumference: 2πr
C=18 so r= 18/2π= 9π
Arc length = rθ 6=(9π)θ θ=6/9π
Convert to degrees by multiplying by 180/π
6/9π x 180/π = 120 degrees
Hope it helps!
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