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02-04-2017
Mathematics

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The ratio of girls to the total number of students in class is 4 to 7 how many students are girls if the class has 20 students in all? 4/7=/21
a.) 16
b.) 18
c.) 14
d.) 12

Respuesta :

02-04-2017

D
4/X= X/20
Cross multiply
7x=80
Divide by 7
X= 11.4

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