Math, asked by sarahs8143, 19 days ago

13:3::x:x-30 find the number of boys and girls

Answers

Answered by ranjithkumarsajeetha

0

Answer:

13:3 :: x:x-30

13/3= x/x-30

l3x- 390= 3x

13x-3x =390

10x = 390

x= 390/30

x= 39

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