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15-05-2019
Mathematics

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Louise measured the perimeter of her rectangular scrapbook to be 152 cm. If the scrapbook is 42 cm wide, how long is the scrapbook?
A.
76 cm
B.
34 cm
C.
32 cm
D.
68 cm

Respuesta :

kerubo23 kerubo23

15-05-2019

Answer:

B. 34

Step-by-step explanation:

Perimeter= 42+42+x+x

First add the 42 together

42+42 = 84

Then subtract the number away because this was added to the total

152 - 84 = 68

68 is not your missing number

Dividing 68 by 2 which gives you 34

So,

Perimeter = 42+42+34+34 = 152

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