bernie24
bernie24
07-01-2019
Mathematics
contestada
Need help on the second one
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BrainySophiee
BrainySophiee
07-01-2019
P = 2w + 2h
factorise
P = 2 (w + h)
divide both sides by the coefficient of w + h
P ÷ 2 = 2 (w + h) ÷ 2
P/2 = w + h
make w the subject of the formula
w = h - p/2
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