Question

Vanessa has scored 45, 32, and 37 on her three math quizzes. She will take one more quiz and she wants a quiz average of at least 40. What is the minimum score Vanessa needs to earn on her fourth quiz? Enter your answer in the box.

Answer 1

The minimum score is 46, here’s the work I did to prove it:

Answer 2

45 + 32 + 37 = 114

114÷3 = 38

4 total quizzes,

 for a 40 average on 4 quizzes she needs 40*4 = 160 total points

for 3 quizzes she has 45 +32 +37 = 114 points

160-114 = 46, she needs at least a 46 on the 4th quiz