08-01-2017
Mathematics

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$12 haircut 15 % tip

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Аноним Аноним

08-01-2017

x/12=15/100
x/12=3/20
cross multiply
12*3=x*20
36=20x
divide both sides by twenty.
1.8=x
12+1.8=13.8
$13.80 is the answer.

Answer Link

davidebiringa davidebiringa

08-01-2017

12
* .15
60
12
180
$1.80

Answer Link

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