SOLUTION: You earn $15 an hour mowing lawns an $10 an hour washing windows. You want to make $400 in one week. An Alkgebraic model for your earnings is 15x + 10y = 400. where x is the numb

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Question 124117: You earn $15 an hour mowing lawns an $10 an hour washing windows.
You want to make $400 in one week. An Alkgebraic model for your earnings is
15x + 10y = 400. where x is the number of hours mowing lawns and y is the number of hours washing windows.
Solve the equation for y?
Sketch a grapg of the equation?

Answer by chitra(359)   (Show Source): You can put this solution on YOUR website!
The equation for y can be written as:

15x + 10y = 400

==> 10y = 400 + 15x

==> y = (400/10) + (15/10)x

==> y = 40 + 1.5x

The graph of the above equation is:


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