SOLUTION: Writing equations. The value of d dimes and d

SOLUTION: Writing equations. The value of d dimes and d - 3 quarters is $6.75.

Question 316440: Writing equations. The value of d dimes and d - 3 quarters is $6.75.
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
Multiply the number of coins times the value of each coin and add the result. In this case, the total value is $6.75, so you have to either write the equation with decimals like this:
.10*d + .25*(d-3) =6.75

OR-- you can change the $6.75 to CENTS, and write it this way 675 cents:
10*d+25*(d-3)=675

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