rome8
rome8
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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