Answers FL-1205040-MJ Grade 7 Mathematics B -GF Changing a Scale — Unit testQuestion 1

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Changing a Scale — Unit test

Question 1 • FL-1205040-M/J Grade 7 Mathematics B -GF

In which of these cases is each stamp worth the most?

Answer

A

7 of the same stamp worth a total of $3.15

B

8 of the same stamp worth a total of $3.20

C

10 of the same stamp worth a total of $4.10

D

16 of the same stamp worth a total of $4.80

Explanation

Divide each total value by the number of stamps to find the value of one stamp. A: $3.15 ÷ 7 = $0.45; B: $3.20 ÷ 8 = $0.40; C: $4.10 ÷ 10 = $0.41; D: $4.80 ÷ 16 = $0.30. So each stamp is worth the most in A, where it is worth 45 cents.

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