DarkAngel21
DarkAngel21 DarkAngel21
  • 10-05-2017
  • Mathematics
contestada

A bookstore advertises 5 notebooks for $7.50. At this rate, how much would 8 notebooks cost

Respuesta :

AnnUnique AnnUnique
  • 10-05-2017
Well first you need to divide 7.50 by 5 . You get 1.50 so then you multiply 1.50 by 8 & get $12
Answer Link
amelia18
amelia18 amelia18
  • 10-05-2017
Hi!

The answer would be $12 , because if we multiply 7.50 by 8 we get 60 and when we divide that by 5 we get 12.

8 notebooks would cost $12

Proportion :
5 nb/8 7.50/x

Cross multiply
7.50 times 8=60
60 divided by 5=12
Answer Link

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