SOLUTION: Eleven dimes and quarters have a total value of $2.15. How many of each were there?

Algebra.Com
Question 249376: Eleven dimes and quarters have a total value of $2.15. How many of each were there?
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
let d= dimes and q=quarters
10d+25q=215
d+q=11
d=11-q
substitute 11-q for d in 10d+25q=215

RELATED QUESTIONS

Sixty coins were emptied from a candy machine. There were only quarters and dimes. The... (answered by TimothyLamb)
50 coins in dimes and quarters have a total value of $11.00. How many dimes and quarters... (answered by josgarithmetic,greenestamps)
A coin bank contains dimes and quarters. The total value of the coins is $10.40. If the... (answered by stanbon)
1. Jordan has a total of one hundred thirty nickels, dimes and quarters. He has three and (answered by josmiceli)
sixty quarters and dimes were emptied from a candy machine. their total value was $9.75.... (answered by josgarithmetic,ikleyn)
Kelly has a collection of nickels, dimes and quarters with a total value of $4.70. There... (answered by richwmiller)
A lady's purse contained 12 coins consisting of quarters and dimes only. Their total... (answered by mananth)
In a collection box , there are dimes and quarters whose total value is $28. If there... (answered by ankor@dixie-net.com)
In a collection box, there are dimes and quarters whose total value is $28. if there were (answered by Edwin McCravy)