You earn $15 an hour mowing lawns and $10 an hour washing windows. You want to make $400 in one week. An algebraic model for your earnings
is 15x + 10y = 400, where x is the number of hours mowing
y is the number of hours washing windows.
37. What are your earnings for 3 hours of mowing and 5 hours of 952
window washing?
x
y
38. Solve the equation for y.
39. Sketch a graph of the equation:
3. 5.