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24-09-2017
Mathematics

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Les bought 6 pairs of shorts for s dollars each and a blazer that cost three times as much as a pair of shorts.He Spent a total of $139.50.How much did the blazer cost?

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kphung76127 kphung76127

24-09-2017

Set up a system of equations.

6s+b=139.5
b=3s

Substitite for b
6s+3s=139.5
9s=139.5
s=15.5

Now multiply by 3 to get the blazer price
15.5*3= 46.5

Final answer: $46.50

Answer Link

Аноним Аноним

24-09-2017

6s + 3s = 139.50

s = 139.50 / 9 = $15.50

The blazer cost 3s dollars = 3 * 15.50 = $46.50 Answer

Answer Link

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