wertyong3000 wertyong3000

26-04-2018
Mathematics

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Chris swam once along the length of a pool that has a perimeter of 124 yd. The width of the pool is 20 yd. How many yd did he swam

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musiclover10045 musiclover10045

26-04-2018

perimeter = 2L x 2W (l= length, W = width)

perimeter = 124, width = 20:

124 = 2L +2(20)

124 = 2L + 40

124-40 = 2L

84 = 2L

L = 84/2
L = 42

he swam 42 yards

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