start value Step-by-step explanation:
Answer:
5 hours, y= how much money it will cost, and x represents how many hours
Step-by-step explanation:
y= 15x+45
120= 15x+45
-45 -45
75= 15x
75/15×= 5 hours
The answer is D. This is because when you take 10.65 and subtract 9.95 from it you get 0.07. If you take this number and continuously add to 9.95 you get the numbers provided in the chart. We'll also notice that the 0.07 is only added after 10 minutes of talking (10,20,30,etc.).
Answer:
x-2 and x+10 side lengths should be used to model a rectangle.
Step-by-step explanation:
x-2 and x+10 side lengths should be used to model a rectangle.
Set up two seperate equations
first the volume equation
1728=length*width*height
we know the height is 6ft
1728=L*W*6
divide both sides by 6
288=L*W
then the second equation
L=4.5W
if one side is 4.5 times larger
then take that and plug it back into the first equation
288=(4.5W)*W
288=(4.5)w^2
divide both sides by 4.5
64=w^2
so w=8
then plug that back into the last equation
L=4.5(8)
L=36