The oldest three smith children took reading exams and scored 91%, 89%, and 97% respectively. If four smith children had a test
average of 92%, what did the youngest child score on the exam?
2 answers:
Answer:91
Step-by-step explanation:
It’s 91 i used guess b check method taking the 91+89+97+x and divided by 4 till you get 92 as your awnser.
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6 - 3 = 3
-2 - (-9) = 7
(3 , 7)
5-(n-4)=3(n+2)
5-n+4=3n+6
9-n=3n+6
3=4n
n=3/4
