Problema Solution
Dogwood Park is 30 yards long by 20 yards wide. Kylie is making plans to double the area by adding a strip at one end and another of the same width on one side. Find the width of the strip.
Answer provided by our tutors
the original area is 20*30 = 600 square yards
Kylie wants to double the area, 600*2 = 1200 square yards
by adding two width pieces (hence they could be different lengths)
1200=(20+x)(30+x)
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solve for equal pieces added, choosing the positive value
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x=10
so a 10-foot long strip is laid down, followed by a 10-foot wide strip