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3 years ago

10+2((8+4/2)-1) can you answer this with work shown please? It equals 28 but i can only get 27

Mathematics

1 answer:

Inessa05 [86]3 years ago

7 0

10 + 2 ( ( 8 + 2 ) -1 )
10 + 2 ( 10 - 1 )
10 + 2 (9)
10 + 18 = 28

Do you see where you could've gone wrong?

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Log explanation below; answer is at bottom.

If the length, l, is 12 units longer than the width, w, then w = l - 12. If the perimeter, p,

p = 2l +2w,

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w = p/7

When two things are set equal to the same variable, they are equal to each other, so,

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Now you need to get rid of the p so you are only working with one variable. To do this you plug in whatever p is equal to for p, so,

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