SOLUTION: Please help solve this problem. Carlo's bought some putting soil. He received 55 centavos in change, all in 5 cents and 10 cents. Their were eight coins. How many coins were 5 cent
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Question 1058016: Please help solve this problem. Carlo's bought some putting soil. He received 55 centavos in change, all in 5 cents and 10 cents. Their were eight coins. How many coins were 5 cents and how many were 10 cents? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = the number of 5c coins
Let = the number of 10c coins
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(1)
(2)
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Divide both sides of (2) by
then subtract (1) from (2)
(2)
(1)
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Put this result back into (1)
(1)
(1)
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There are 5 5c coins
There are 3 10c coins
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check answer:
(2)
(2)
(2)
(2)
OK
