3 years ago

The perimeter of a notebook is 42 inches . the notebook is 11 inches tall . how wide is he

Mathematics

1 answer:

Elis [28]3 years ago

3 0

Answer:

10 inches

Step-by-step explanation:

perimeter = 2(w+L)

42=2(11+w) --> divide both sides by 2

42/2=2/2(11+w)

21=11+w ---> subtract both sides by 11

21-11 = 11 + w-11

10=w

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