Answers Common Core Math 7 - MA3107 CRIntroduction to Percents

Introduction to Percents Answers

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George used the diagram below to help determine 30% of 60. Which expression could George have used?30% of 6010%10%10%10%10%10%10%10%10%10%0.100.100.100.100.100.100.100.100.100.106666666666

(0.10)(6)

(0.10)(60)

(3)(6)

(3)(60)

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Which percent is equivalent to 2.5?

2.5%

25%

250%

2,500%

An unknown fraction is between 0 and 1. Which is true about the equivalent percent and decimal?

The percent and decimal are between 0 and 1.

The percent and decimal are greater than 1 and less than 100.

The percent is between 0 and 1, and the decimal is greater than 0 and less than 100.

The percent is greater than 0 and less than 100, and the decimal is between 0 and 1.

At a restaurant, servers keep 75% of the tips from each table, and support staff keeps 25%. A $20 tip is left at a table. How much of the tip does the server keep?Tips25%25%25%25%$5$5$5$5

$10

$15

$20

Which expression can be used to find 80% of 120?80% of 12020%20%20%20%20%

(0.8) (24)

(0.2) (120)

(0.8) (120)

(0.2) (24)

Which fraction is equivalent to 38%?

StartFraction 3 over 8 EndFraction

StartFraction 9 over 25 EndFraction

StartFraction 19 over 50 EndFraction

3 and StartFraction 4 over 5 EndFraction

Vincent ran 24 laps on Monday. This is of the maximum number of laps he has run in one day. What is the maximum number of laps Vincent has run in one day?Number of Laps

Mikel creates the table below to help her determine 40% of 70.40% of 7020%20%20%20%20%0.20.20.20.20.21414141414She writes the expression . Which change in Mikel’s expression will lead her to the correct answer?

The 14 in the expression could be changed to 28.

The 0.2 in the expression could be changed to 0.4.

The 14 in the expression could be changed to 70.

The 0.2 in the expression could be changed to 2.

Carey creates the table below to help him determine 75% of 36.75% of 3625%25%25%25%9999He writes the expression . Which change in Carey’s expression will lead him to the correct answer?