SOLUTION: you paint 2 square yards in 3 hours and your friend paints 4 square yards in 5 hours. how long does it take you and your friend to paint 11 square yards
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Question 339793: you paint 2 square yards in 3 hours and your friend paints 4 square yards in 5 hours. how long does it take you and your friend to paint 11 square yards Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! you paint 2 square yards in 3 hours
Your DATA:
rate = (3/2) yd/hr
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your friend paints 4 square yards in 5 hours.
Friend DATA:
rate = (4/5) yd/hr
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Together DATA:
rate = 1/x yd/hr.
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how long does it take you and your friend to paint 11 square yards
Equation:
rate + rate = together rate
3/2 + 4/5 = 1/x
15x + 8x = 10
23x = 10
x = 10/23 hr. to paint 1 sq yd together
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11x = 110/23 = 4.78 hrs to paint 11 sq. yds
4.78 hr. = 4hr and 47 minutes
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Cheers,
stan H.
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