Answer:
y=72.53 square root x
Step-by-step explanation:
did it on edge
Answer:
<em>c. y = 1.25</em>
Step-by-step explanation:
The equation for direct variation is
y = kx,
where k is the constant of proportionality.
We can use the given values of x and y to find k for this case.
y = kx
-10 = k * 40
k = -10/40
k = -0.25
The equation for this case is
y = -0.25x
Now we let x = -5 and solve for y.
y = -0.25x
y = -0.25(-5)
y = 1.25
Answer: c. y = 1.25
Assuming x is the number of weeks, the equation would be 490 - 10x = 370. Starting with $490 and subtracting ten multiplied by the number of weeks will get the amount.