Answer:
Part A) the direct variation equation that relates x and y is:

Part B) value of y = 75
Step-by-step explanation:
Part A)
We are given that y varies directly with x, and y=10 when x=-2 what direct variation equation relates x and y?
If x and y are directly related then:
y ∝ x or y=kx
where k is constant of proportionality.
Now, finding k:
y=10 and x=-2

So, value of k = -5
So, the direct variation equation that relates x and y is:

Part B)
What is the value of y when x = -15
the equation is:

Putting x = -15

So, value of y = 75
Keywords: Direct Variation
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Answer:
Erica needs 1/4 more gallons of paint.
Step-by-step explanation:
3 1/2 + 1 3/4 = 5 1/4
in order to get 5 1/4 to 5 1/2, you need to add another quarter.
So:
5 1/4 + 1/4 = 5 1/2
3/11 *2 = 6/22
3/11 *3= 9/33
3/11 *4 = 12/44
Answer:
120
Step-by-step explanation:
87.5% of what number is 105?
87.5%=0.875
105/0.875=120