SOLUTION: Barn Painting. Melanie can paint a certain barn by herself in x days. Her helper Melissa can paint the same barn by herself in 2x days. Write a rational expression for the fract
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Question 146752: Barn Painting. Melanie can paint a certain barn by herself in x days. Her helper Melissa can paint the same barn by herself in 2x days. Write a rational expression for the fraction of the barn that they complete for 1 day by working together. Evaluate the expression for x = 5. Answer by edjones(7569) (Show Source):
You can put this solution on YOUR website! 1/x + 1/2x
=(2+1)/2x LCD=2x
=3/2x of the barn painted in 1 day working together.
.
x=5
3/10 of the barn painted in 1 day working together.
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Ed
