Benny's scores on his 1st 3 exams are 54, 68 & 54. What must Benny score on his next exam to average 61 for all 4 exams?

Benny's scores on his 1st 3 exams are 54, 68 & 54. What must Benny score on his next exam to average 61 for all 4 exams?
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2 Answers

1/4(54+68+54+x)=61

54+68+54+x=61*4

176+x=244

x=244-176

x=68
by Level 3 User (4.1k points)

i dont know but i a have a question

 

mario has an average of 95 on five tests. Four of his test scores are 91,98,97, and 94. What is his fifth score?

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