Chapter 5 - Spiral Review

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CCSS.6.EE.B.6

The mean score for 10 students on the chemistry final exam was 178. However, the teacher had made a mistake and recorded one student's score as ten points less than the actual score. What should the mean score be?

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CCSS.HSF-LE.A.1B

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CCSS.6.EE.B.7

• -2

• 1/2

• -1/2

• 2

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CCSS.7.EE.B.4A

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CCSS.6.EE.B.7

Juan's international calling card costs $0.09 for each minute. Which inequality can be used to find how long he can talk to a friend if he does not want to spend more than $2.50 on the call?

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CCSS.6.EE.B.8

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CCSS.8.EE.C.7B

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CCSS.7.EE.B.4A

Rhiannon is paid $52 for working 4 hours. At this rate, how many hours will it take her to earn $845?

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CCSS.HSF-LE.A.1B