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The scale on a map is 3cm=15miles. Mr. Rollins measures the distance to the next at 8cm. How many miles away is the next town?

Answer :

[tex]\begin{gathered} \text{if 3 cm correspond to 15 miles, } \\ 1\text{ cm correspond to 15/3 = 5 miles. } \\ \text{thus 8 cm corresponds to } \\ 8\cdot5=40\text{ miles} \\ \\ \text{thus, the next town is 40 miles away} \end{gathered}[/tex]

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