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30-03-2018
Mathematics

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Write an expression for the length 7mm and it’s width 62mm for the rectangle

Write an expression for the length 7mm and its width 62mm for the rectangle class=

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Nanniiiiiii Nanniiiiiii

03-04-2018

First statement:
l = 7 + w

Second statement:
21 + 2w > 62

The first statement is the answer to A

B. 2(7 + w) + 2w > 62
14 + 2w + 2w > 62
14 + 4w > 62

C. Subtract 14 from both sides
4w > 48
Divide both sides by 4
w > 12

The width of the rectangle must be strictly 12mm

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