Thursday

July 31, 2014

July 31, 2014

Posted by **Laura** on Sunday, October 2, 2011 at 5:08pm.

Max has a collection of 210 coins consisting of nickels, dimes, and quarters. He has twice as many dimes as nickels, and 10 more quarters than dimes. How many coins of each kind does he have?

- algebra -
**PsyDAG**, Monday, October 3, 2011 at 2:25amD = 2N, Q = D+10

N + D + Q = 210

N + 2N + (2N + 10) = 210

Solve for N, then D and Q.

**Related Questions**

mathematics - In a collection of nickels, dimes and quarters, there are twice ...

mathematics - In a collection of nickels, dimes and quarters, there are twice ...

math - In a collection of nickels, dimes and quarters, there are twice as many ...

algebra - A collection of nickels, dimes, and quarters amounts to $9.50. If ...

mathematics - In a collection of nickels, dimes and quarters, there are twice ...

mathematics - In a collection of nickels, dimes and quarters, there are twice ...

introductory Algebra - A small slot machine holds 500 coins consisting of ...

Math - A collection of 30 coins worth $5.50 consists of nickels, dimes, and ...

Math - Iman collects quarters,dimes, nickels, and pennies. This morning he took...

MATH (PLease HELp) - Sally has three times as many dimes as nickels and twice as...