SOLUTION: six coins add up to .65 cents. How many are dimes. a man uses $138.00, 5/8 of his paycheck for room & board, what is his total paycheck?

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Question 925300: six coins add up to .65 cents. How many are dimes.
a man uses $138.00, 5/8 of his paycheck for room & board, what is his total paycheck?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
six coins add up to .65 cents. How many are dimes.
x + y + z = 6
...........
25x + 10y + 5z = 65 (x + y + z = 6)
25x + 10y + 5(6-(x+y) = 65
25(1) + 10(3) + 5(2) = 65
3 Dimes
.......
checking
25 + 30 + 10 = 65
1 + 3 + 2 = 6