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anonymous
 4 years ago
A collection of 70 coins consisting of dimes, quarters, and halfdollars has a value of 17.75. there are three timesas many quarters as dimes. Find the number of ecah kind of coin
anonymous
 4 years ago
A collection of 70 coins consisting of dimes, quarters, and halfdollars has a value of 17.75. there are three timesas many quarters as dimes. Find the number of ecah kind of coin

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saifoo.khan
 4 years ago
Best ResponseYou've already chosen the best response.0x+y+z=70;x=3y;4y+z=70 .25(3y)+.10y+.5z=17.75 .85y+.5z=17.75 85y+50z=1775 200y+50z=3500  115y=1725 y=15 x=45 z=10 There are 45 quarters, 15 dimes, and 10 halfdollars in the coin collection..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Thank you, but i still don't understand how you got the result. Would you please explain with a little bit of details. Thanks oce again :)
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