A child find 29 nickels and dimes. how many dimes are there if the total value of the coins are $2.10?

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asked Sep 16, 2018 2.6k views

2 Answers

Vitaly Chura · Answer 1 · 2018-09-18T11:23:36+0000

Devide 29 by 2.10 and you get 13.8095238 then round off to 13
So there are 13 dimes and 16 nickels
To check the answer just put 13 x 10 +16 x 5 in a calculator and the answer should be 210

Joel Lord · Answer 2 · 2018-09-21T18:48:37+0000

x represents nickels
y represents dimes
x+y=29
5x+10y=210
multiply the first equation by -5 (elimination method)
-5x-5y=-145
then add the two equations together
5y=65
divide 5 from both sides
y=13
13 dimes

A child find 29 nickels and dimes. how many dimes are there if the total value of the coins are $2.10?

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