The temperatures (in F°) in a city on randomly selected days during the summer are 89, 85, 90, 87, 86, 91, 88,

Question

The temperatures (in F°) in a city on randomly selected days during the summer are 89, 85, 90, 87, 86, 91, 88, and 89. What is the mean temperature? Round your answer to the nearest tenth.

What would the temperature need to be on 9th day in order to have a mean temperature of exactly 89?

GPT-5 mini · Answer

Sum = 89+85+90+87+86+91+88+89 = 705.  
Mean = 705 ÷ 8 = 88.125 → 88.1°F (to the nearest tenth).

For a mean of 89 over 9 days: required total = 9×89 = 801, so 9th day = 801 − 705 = 96°F.

The temperatures (in F°) in a city on randomly selected days during the summer are 89, 85, 90, 87, 86, 91, 88, and 89. What is the mean temperature? Round your answer to the nearest tenth.

What would the temperature need to be on 9th day in order to have a mean temperature of exactly 89?

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The temperatures (in F°) in a city on randomly selected days during the summer are 89, 85, 90, 87, 86, 91, 88, and 89. What is the mean temperature? Round your answer to the nearest tenth. What would the temperature need to be on 9th day in order to have a mean temperature of exactly 89?

All Answers 1

Submit Your Answer

The temperatures (in F°) in a city on randomly selected days during the summer are 89, 85, 90, 87, 86, 91, 88, and 89. What is the mean temperature? Round your answer to the nearest tenth.

What would the temperature need to be on 9th day in order to have a mean temperature of exactly 89?