Dave Gabriel L.

asked • 01/19/17

Rita has 10 coins all in 5 pesos and 10 peso amounting to 150 pesos. How many 10 peso coins are there?

Rita has 10 coins all in 5 pesos and 10 peso amounting to 150 pesos. How many 10 peso coins are there?

1 Expert Answer

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Mark M. answered • 01/19/17

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f represents the number of 5 peso coins
10 - f represents the number of 10 peso coins
5f + 10(10 - f) = 150
 
Can you solve for f and answer the question?
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Dave Gabriel L.

I can't ... ??
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01/19/17

Mark M.

Well I can understand. Rita has only 10 coins. The most she can have is ten 10 peso coins that gives her 100 peso. A little short of 150. Check your information.
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01/19/17

Dave Gabriel L.

thank you sir
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01/19/17

Mark M.

You are welcome!
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01/19/17

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