Marcy has a total of 100 dimes and quarters. If the total value of the coins is $14.05, how many quarters does she have?

Question

anonymous · Answer

Let us presume that Marcy has all dimes. That means she has a total of 10 dollars. That is $4.05 less than the value, which is $14.05. The difference between the quarters and the dimes is fifteen cents, and 4.05/0.15 equals 27 quarters, and you can use that to find the number of dimes which is 73.

Check: 27*25+73*10=1405.

anonymous · Answer

thanks

anonymous · Answer

You could use a system of equations. Do you want me to explain that?