SOLUTION: Emily is installing artificial grass in her garden. The garden is 15 feet long and 30 feet wide. It took her 4 hours to install the grass. What is the average speed at which she

Question 815554: Emily is installing artificial grass in her garden. The garden is 15 feet long and 30 feet wide. It took her 4 hours to install the grass.
What is the average speed at which she installed the grass?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
a = 15*30 = 450 sq.ft
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r = a / t
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r = 450 / 4
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r = 112.5 sq.ft/hr
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