SOLUTION: I have $3.75 in dimes and quarters. the number of quarters is 2 less than 3 times the number of dimes. how do I find number of coins in each type

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Question 1011172: I have $3.75 in dimes and quarters. the number of quarters is 2 less than 3 times the number of dimes. how do I find number of coins in each type
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
The description translated into a system of equations:
system%28d%2Bq=3.75%2Cq=-2%2B3d%29

Make the substitution and solve first for d.