SOLUTION: a bank coin contains nickles and imes. the number of dimes is 10 less tahn twice the number of nickles. the total value of all the coins is $2.75. find the nuber of each type of c
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Question 662828: a bank coin contains nickles and imes. the number of dimes is 10 less tahn twice the number of nickles. the total value of all the coins is $2.75. find the nuber of each type of coin in thhe bank. Answer by ReadingBoosters(3246) (Show Source):
You can put this solution on YOUR website! x = nickels
y = dimes
.05x+.1y=2.75
y=2x-10
.05x + .1(2x-10) = 2.75
.05x + .2x - 1 = 2.75
.25x = 3.75
x = 15 nickles
y = 15(2)-10 = 20 dimes
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