SOLUTION: three apples and five grapes cost $1.70; five apples and three grapes cost $2.46. What is the cost of one grape?
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Question 198128: three apples and five grapes cost $1.70; five apples and three grapes cost $2.46. What is the cost of one grape? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = the cost of 1 apple
Let = the cost of 1 grape
given:
(1) (in cents)
(2) (in cents)
Multiply both sides of (1) by
Multiply both sides of (2) by
Subtract (2) from (1)
(1)
(2)
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The cost of 1 grape is 7 cents
check answer:
and
OK