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A washer and a dryer cost $450 combined. The cost of the washer is two times the cost of the dryer. What is the cost of the dryer?
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Oct 21, 2017
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A washer and a dryer cost $450 combined. The cost of the washer is two times the cost of the dryer. What is the cost of the dryer?
Mathematics
high-school
Jiri Janous
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W+D=450
W is 2 times D
W=2D
sub
2D+D=450
3D=450
divide 3 both sides
D=150
dryer cost $150
Malaury Boudon
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Oct 28, 2017
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Malaury Boudon
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