Answer:
2y=9-x
y=9-x/2
9/2-x/2=mx+c
c=9/2
m=-1/2
Answer:
the answer of this question is
2y=-x+9
You have started keeping track of your spending habits. You have noticed that after 12 days you have
$1281 left in your account. You check again after 17 days have passed and your account is now at $861.
How many days will it take before you run out of money (assume you are spending money at a constant
rate)? Marks will be awarded only for the use of equations where t is the time elapsed in days and m is
the money left in your account in dollars.
Answer:
Time taken to elapse the remaining $861 = 10.25 days
Step-by-step explanation:
Assuming that I am spending at a rate of -x dollars per day
Let initial amount be A
The rate of expenditure = 1281-861/5 = 84 dollars per day
Time taken to elapse the remaining $861 = $861/$84 per day
= 10.25 days
Please help me. I will be giving 50 points, brainliest, a friend request, 5 stars and a heart. Please give an explanation as well.
Answer:
Step-by-step explanation:
Let older brother age be x and the age difference between the brothers be y
Younger brother's current age = x - y
When older brother's age was at x - y, younger brother's age was x - 2y = 2
When young brother's age will be at x, older brother's age will be x + y = 20
Subtracting the first equation from the second: 3y = 18
y = 6
x = 14
So the older brother is 14 and the younger brother is 8.
Sum of three son's ages now = 15 + 11 + 7 = 33
Daddy's age now = 45
Age difference = 12
Each year, daddy's age goes up by 1 while the sum of three son's ages goes up by 3.
Dividing the age difference by the difference in age gain, 12 / (3 -1) = 12 / 2
= 6
So in 6 years when daddy is 51 and the sum of sons at 21, 17 and 13 will be equal.
Answer:
Step-by-step explanation:
older bro age is x
younger bro age is y
age diff = x - y
it was (x-y) years ago when older bro was at age y
younger bro age then was y - (x - y) =2
2y - x = 2
younger bro will be at age x in (x-y) years
older bro age then will be x + (x-y) = 20
2x - y = 20
4x - 2y = 40
adding 2y - x = 2
3x = 42
x = 14
y = 2*14 - 20 = 8
daddy' age, 45 is 12 over the sum of sons (15, 11 and 7)
in 1 yr, dad age +1 n sum of sons +3 = difference of 2
so in 12/2 = 6 yrs they will be the same
Aaron is a chocolate vendor. He finds that he needs 25 identical sweet boxes to pack all the chocolates he has if he puts 24 chocolates per box. How many sweet boxes will he need to pack all the chocolates, if he puts only 30 chocolates in a box?Immersive Reader (1 Point)
Answer: 20 boxes of chocolates
Step-by-step explanation:
First find out the total number of chocolates he has:
= 25 boxes * 24 chocolates per box
= 600 pieces of chocolate
The number of boxes needed if the chocolates are packed 30 in a box is:
= Total number of chocolates / Number of chocolates per box
= 600 / 30
= 20 boxes of chocolates
1. Complete the following table for the proportional relationship:
Hot Dogs
I Total Price
1
2
$3.00
3
$7.50
12
$31.50
55
What is the constant of proportionality for the relation above?
Add 1.50 to each time the price goes up
Step-by-step explanation: Multiply by two each time and you will have your answer 1 hot dog is 1.50 two are 3.00 use that method and you will have the correct answer
A TV is priced at $475.25. There is a 7% sales tax rate. What is the sales tax for the TV in dollars and cents?
Answer:
$33.27
Step-by-step explanation:
Tara uses 8.8 pints of white paint and blue paint to paint her bedroom walls. 4 5 of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to paint her bedroom walls?
Answer:
the blue paints of 1.76 pints is used to paint her bedroom walls
Step-by-step explanation:
Given that
Tara uses 8.8 pints of white paint
And, the 4 by 5 of this amount represent the white paint
We need to find out the number of paint used by the blue paint
So,
= 8.8 - (8.8 × 4 ÷ 5)
= 8.8 - 7.04
= 1.76 pints
Hence, the blue paints of 1.76 pints is used to paint her bedroom walls
TRUE or FALSE
(a) In a scatterplot, the response is shown on the horizontal axis with the explanatory variable
on the vertical axis.
(b) If all of the data lie along a single line with nonzero slope, then the r
2 of the regression is
1. (Assume the values of the explanatory variable are not identical).
(c) If the correlation between the explanatory variable and the response is zero, then the slope
will also be zero.
(d) The use of a linear equation to describe the assocation between price and sales implies
that we expect equal differences in sales when comparing periods with prices $10 and $11
and periods with prices $20 and $21.
(e) The linear equation (estimated from a sequence of daily observerations):
Estimated shipments = b0 + 0.9*(Orders Processed) implies that we expect twice as many
shipments when the number of orders processed doubles only if b0 = 0.
(f) The intercept estimates how much the response changes on average with changes in the
predictor.
I'll do parts (a) through (c) to get you started
(a) False. The explanatory variable is always along the x axis, and the response variable is along the y axis. The response variable reacts to whatever the input explanatory variable is, hence the name "response".
---------
(b) True. If all data lie along a single straight line with nonzero slope, then either r = -1 or r = 1. If we have all data points on a line with some negative slope, then r = -1. If the regression slope is positive, then r = 1. Either way, it will lead to r^2 = 1 because (1)^2 = 1 and (-1)^2 = 1. In other words, there are two solutions to r^2 = 1 and they are r = -1 or r = 1. In the case of r = -1, we say the data has perfect negative linear correlation. With r = 1, the data has perfect positive linear correlation.
---------
(c) True. If r > 0, then we have some level of positive correlation which means the regression slope is positive in some way. If r < 0, then the regression slope is negative in some way. That must mean r = 0 leads to the regression slope having a flat horizontal line. This could mean one of two things: i) The points are all on or near the same curve such as a parabola, ii) The points are completely randomly scattered about. If case (i) happens, then it's better to use nonlinear regression instead of linear regression.
A truck is bought at the price of $60,000. The value decreases at the rate of .25 every year (t). The exponential expression 60,000(0.75)t describes this situation. Find the value of the truck at 2 years.
Answer:
$33750
Step-by-step explanation:
Replace t with 2. The correct formula is
[tex]60000(.75)^t[/tex] (t is an exponent)
With t = 2, the value of the truck is
[tex]60000(.75)^2=33750[/tex]
What is the value of x?
Answer:
,
Step-by-step explanation:
someone help i'll give brainliest to right answer!
QUESTION: A pentagon has angles that measure 110°, 90°, 80°, 115°, and v. What is v?
Answer:
145
Step-by-step explanation:
angles in a pentagon add up to equal 540
Hence, 110 + 90 + 80 + 115 + v = 540
( note that we just created an equation that we can use to solve for v )
We now solve for v using the equation created
110 + 90 + 80 + 115 + v = 540
step 1 combine like terms
110 + 90 + 80 + 115 = 395
we now have 395 + v = 540
step 2 subtract 395 from each side
540 - 395 = 145
395 - 395 cancels out
we're left with v = 145
Find the distance between the points (4,0) and (0, 3).
Step-by-step explanation:
Given points are (4,0) and (0,3)
The distance between these two points =√(0-4)^2+(3-0)^2
=√16+9
=√25
=5 units
Answer:
(4,0) = ([tex]x_{1}[/tex],[tex]y_{1}[/tex])
(0,3)=([tex]x_{2} ,y_{2}[/tex])
distance between the points = [tex]\sqrt{(x_{1}-x_{2})^2 + (y_{1}-y_2 )^2 }[/tex]
distance=5
Step-by-step explanation:
The parabola in the image has its focus at (4,3). Its directrix is the line y=1. The point (8,6) is on the parabola.
4
3
2
ol
Answer
:
Step-by-step explanation:
If f(x) = 8x2-5, what is f(-1)
Answer:3
Step-by-step explanation:
Simply plug in -1 for anywhere you see x in the equation so...
8(-1)^2-5
8(1)-5
8-5
3
Hope this helps
Step-by-step explanation:
Remember math is a language
f(x) : A function of x where x can be any number including a number you choose
when you see f(-1), this tells you what the function is at this given x value. So you substitute - 1 wherever you see x
8(-1)2 - 5
will give brainiest!!
Find the volume of the cone.
9 cm
r = 6 cm
V = [?] cm3
Round to the nearest tenth.
Volume of a cone is equal to pi * r^2 * h/3.
In this case:
pi * 6^2 * 9/3
pi * 36 * 3
108pi
Answer: 339.3
Answer: 339.292006588 or V ≈ 339.29
Step-by-step explanation: Here is the formula that you need...
V = π [tex]r^{2}[/tex] [tex]\frac{h}{3}[/tex]
1. Multiply π (pi or approximately 3.14) by [tex]6^{2}[/tex] (36).
2. Multiply your answer from the last step which is 113.097335529 by [tex]\frac{9}{3}[/tex] or 3.
3. Final Answer should be 339.29 for the nearest tenth.
V = π [tex]6^{2}[/tex] [tex]\frac{9}{3}[/tex] which gives you...
V = 339.29
I hope this helped you!!
What is the inverse of the function f(x) = 64x2 when x 2 0?
Answer:
The answer is A.
Y=64x²
X=64y²
X/64=y2
Then y = + or - root of x /8
Barry wants to make a drawling this is 1/2 the size of the original. If a tree in the original drawling is 11 inches tall and 7 inches wide, what will be the length and width of the tree in Barry's drawling?
Answer: 5.5 inches, 3.5 inches
Step-by-step explanation:
Given
Barry wants to make a drawing i.e. half the size of original
The length and width of the original drawing are 11 inches and 7 inches respectively.
So, the intended drawing is obtained by multiplying the original dimensions by [tex]\frac{1}{2}[/tex]
The length of barry's drawing is
[tex]\Rightarrow 11\times \frac{1}{2}\\\\\Rightarrow 5.5\ \text{inches}[/tex]
The breadth of barry's drawing
[tex]\Rightarrow 7\times \frac{1}{2}\\\\\Rightarrow 3.5\ \text{inches}[/tex]
Could you help me with one of those two questions, please? Please
Answer
Step-by-step explanation:
Hope it helps you!
which ones plsss help
HELP ME PLEASEEEEEEEEE
[tex](11 + x) \div 2 = 7 \\ 11 + x = 14 \\ x = 14 - 11 \\ x = 3[/tex]
[tex](4 + y) \div 2 = 5 \\ 4 + y = 10 \\ y = 10 - 4 \\ y = 6[/tex]
[tex](3,6) - option \: a[/tex]
Write the word sentence as an equation.
The sum of nine and one-fourth of a number g is equal to a number h.
Answer:
9+1/4g = h
Step-by-step explanation:
7m²(4-3m²)
this one is algebra question and multiply so plzz plzz replyy
Answer:
ok so the answer is 28² - 21 to the power of 4
Step-by-step explanation:
A middle school took all of its 6th grade students on a field trip to see a ballet at a theater that has 1300 seats. The students filled 1001 of the seats in the theater. What percentage of the seats in the theater were filled by the 6th graders on the trip?
pleaseeeeeeeeeeeeeeeeeee answer
Answer:
The answer is y=x-5
Step-by-step explanation:
y=x-5
the ages of the 11 players of a soccer team on the soccer field are shown. 21, 32, 22, 28, 26, 30, 29, 24, 22, 24, 26. what would cause the median age of the players on the field to decrese?
50 POINTS
Show work for both questions.
Pleaseee don’t answer if you don’t know, I need this really soon.
Step-by-step explanation:
a)
[tex]\sin^{2}x + \cos^{2}x = 1[/tex]
Dividing both sides by sin^2x, we get
[tex]1 + \frac{\cos^{2}x }{ \sin^{2}x} = \frac{1}{\sin^{2}x } [/tex]
The 2nd term on the LHS is simply cot^2x and the RHS is simply csc^2x
[tex]1 + \cot^{2}x = \csc^{2}x[/tex]
b)
[tex]2 \sin x = 1[/tex]
[tex] \sin x = \frac{1}{2} [/tex]
[tex]x = \sin^{ - 1} (\frac{1}{2}) = \frac{\pi}{6} [/tex]
You can also graph it to arrive at the solution.
Did u get help
On you question?
Por favor alguien que me ayude ( es un examen final) :(
Answer:
A) 24
Step-by-step explanation:
Answer:
m = 24
Step-by-step explanation:
The histogram represents the time it takes employees to get to work each morning.
Which statement correctly describes the data?
A.The data is skewed left because the time it takes employees to get to work tails off to the left.
B.The data is skewed left because the time it takes employees to get to work tails off to the right.
C.The data is skewed right because the time it takes employees to get to work tails off to the right.
D. The data is skewed right because the time it takes employees to get to work tails off to the left.
Answer: The Real answers are 1) ✔ skewed left and 2) ✔ 1-3
Step-by-step explanation:
Please mark me brainliest
I need 3 more to move to a higher level but
i'm just glad to help.
[tex]5u + 11 = 56 \\ u = [/tex]
how resolve this ?
Answer:
u = 9
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
Identify
5u + 11 = 56
Step 2: Solve for u
[Subtraction Property of Equality] Subtract 11 on both sides: 5u = 45[Division Property of Equality] Divide 5 on both sides: u = 9Answer:
u = 9
Step-by-step explanation:
5u + 11 = 56
Subtract 11 from each side.
5u + 11 - 11 = 56 - 11
Simplify.
5u = 45
Divide each side by 5.
5u ÷ 5 = 45 ÷ 5
Simplify.
u = 9
RS 1000 was distributed equally a anmong certain number of people. If there were 5 people more each would have received RS 20 less .Among how many people was the amount distributed? Find it.
Answer:
is answer 13.50781059 ?
please answer it soon