Last Friday

3/4 of the children were present at school last Friday. If there are 90 children present, how many children were absent?

Correct answer:

a =  30

Step-by-step explanation:

p=90  43 (p+a)=p 43 (90+a)=90  3/4 (90+a)=90  3a=90  a=390=30  a=30



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