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EXAMPLE 3

In parts of New York City, the blocks between avenues are called long blocks . There are 4 long blocks per mile. Blocks between streets are called short blocks . There are 20 short blocks per mile. You walk 40 short blocks and 6 long blocks. How many miles do you walk?. EXAMPLE 3.

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EXAMPLE 3

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  1. In parts of New York City, the blocks between avenues are called long blocks. There are 4 long blocks per mile. Blocks between streets are called short blocks. There are 20 short blocks per mile. You walk 40 short blocks and 6 long blocks. How many miles do you walk? EXAMPLE 3 Using a Problem Solving Plan City Blocks

  2. 1 mile 20 short blocks Solve the Problem Because 20 short blocks equal one mile, you can multiply the number of short blocks by to convert to miles. EXAMPLE 3 Using a Problem Solving Plan SOLUTION Read and Understand You walk 40 short blocks and 6 long blocks. There are 20 short blocks per mile and 4 long blocks per mile. You are asked to find how many miles you walk. Make a Plan Convert short blocks to miles and long blocks to miles using unit analysis. Then add to find the total miles.

  3. 40 short blocks 1 mile 2 miles = 20 short blocks You can convert long blocks to miles by multiplying by 1 mile . 4 long blocks 6 long blocks 1 mile 1.5 miles = 4 long blocks ANSWER You walk a total of 2 + 1.5 = 3.5 miles. EXAMPLE 3 Using a Problem Solving Plan

  4. 50 short blocks 1 mile 2.5 miles = 20 short blocks You can convert long blocks to miles by multiplying by 1 mile . 4 long blocks ANSWER 12 long blocks 1 mile 3 miles = You walk a total of 2.5 + 3 = 5.5 miles. 4long blocks for Example 3 GUIDED PRACTICE 3. What If? In Example 3, how many miles do you walk if you walk 50 short blocks and 12 long blocks?

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