Brainybulaaron8921 Brainybulaaron8921

14-08-2017
Mathematics

contestada

Find the length and the width of a rectangle if the perimeter is 70 m and the length is sixsix times the width.

Respuesta :

kphung76127 kphung76127

14-08-2017

l=6w
70=2(l+w)

Use substitution
70=2(6w+w)
70=2(7w)
35=7w
w=5

Plug this in to the first equation.
l=6(5)
l=30

Final answer: length=30 m, width=5 m

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