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OpenStudy (anonymous):
Helping son with homework and am stumped myself. The answer key has a different answer than I figured. Can someone please show me the work to solve the following problem? If the height of a rectangle is 2/5mm and the perimeter is 20 2/15mm, what is the length of the base of the rectangle? Thank you.
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OpenStudy (anonymous):
p = 2(l+b) 20 2/15 = 2(2/5 + l)
OpenStudy (anonymous):
perimeter = 2 ( length + height) 20 2/15 = 2(2/5+length)
OpenStudy (anonymous):
l= 10 1/15 - 2/5
OpenStudy (anonymous):
145/15 = 29/3 = 9 2/3
OpenStudy (anonymous):
Thank you.
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