Answered

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Melanies blue notebook cover is 20 centimeters by 30 centimeters. She has a sticker for each letter in her name. Each sticker is a square that measures 2 centimeters on each side. if she puts all 7 stickers on her notebook, how much of the blue notebook cover will still be showing? Step by step on how you got answer. Thank you

Sagot :

iGreen
Find the surface area of her notebook.

30 + 30 + 20 + 20 = 100

Now find the surface area of the square stickers.

2 + 2 + 2 + 2 = 8

So this is the surface area of one square, now multiply it by 8.

8 * 7 = 56

This is the surface area of all the stickers, now subtract it to the surface area of the notebook:

100 - 56 = 44

So 44 centimeters of the notebook cover will still be showing.

Answer:

544 square centemiters.

Step-by-step explations

A = LxW

20x30 = 600

P=l+w+l+w

2+2+2+2 =8

8×7 stickers

=56

600-56 = 544

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