rmessickmessick rmessickmessick

12-11-2018
Mathematics

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What is the unit rate of one mile if the map scale is 3/10 in. = 7/8 mile?

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wegnerkolmp2741o wegnerkolmp2741o

12-11-2018

3/10 inches x inches

---------------- = -------------

7/8 miles 1 miles

using cross products

3/10 * 1 = 7/8 * x

multiply by 8/7

3/10 * 8/7 = 7/8 *8/7*x

24/70 = x

divide by 2

12/35

12/35 inches per 1 mile

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