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-Dominant- [34]

3 years ago

15

Rueben has scores of 70, 75, 83, 80 on four Spanish quizzes. What score must he get? on the next quiz to achieve a quiz average

of at least 80?

1 answer:

igomit [66]3 years ago

5 0

Answer:

92

Step-by-step explanation:

let 'q' = score on last quiz

<u> 70 + 75 + 83 + 80 + q </u> ≥ 80

5

cross-multiply:

308 + q ≥ 5(80)

308 + q ≥ 400

q ≥ 92

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