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OpenStudy (anonymous):
Using the formula P = 2(a + b), find a when P = 15 and b = 5. 2.5 5 8 10
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OpenStudy (aravindg):
Just substitute P = 2(a + b) 15=2(a+5) solve for a
OpenStudy (sweetdreamtan):
a= 5/2 or 2.5
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