Question

The equation y = 10x + 15 models the amount of money y, in dollars, that Jack earns shoveling snow for x hours. How many hours does Jack need to work to earn $55?

Answer 1

The given equation is:

y = 10x + 15

We need to find the number of hours Jack needs to work to earn $55, which means we need to solve for x when y = 55.

So, we substitute y = 55 into the equation and solve for x:

55 = 10x + 15

Subtracting 15 from both sides, we get:

40 = 10x

Dividing both sides by 10, we get:

x = 4

Therefore, Jack needs to work for 4 hours to earn $55.