Monday

September 15, 2014

September 15, 2014

Posted by **ssssss** on Monday, April 16, 2012 at 5:28am.

- maths -
**Reiny**, Monday, April 16, 2012 at 8:26amnumber of 25 cent coins --- x

number of 50 cent coins ---- 24-x

25x + 50(24-x) = 690

solve for x and back-substitute

**Answer this Question**

**Related Questions**

Grade 5 Maths - A coin box contained some twenty-cent and fifty-cent coins in ...

maths - A coin box contained some twenty-cent and fifty-cent coins in the ratio ...

math - Sasa had some 20-cent and 50-cent coins. 7/8 of the coins were 20-cent ...

Math problem I need help with - Combination of coins that can be used; fifty-...

maths - Andrew has 7 20c coins and 5 50c coins in his piggy bank. What is the ...

maths - A bag contained a number of 20cents, 50cents and $1 coins. 1/3 of the ...

math - Fred has thirteen coins. Together they're worth $1.65. One of them ia a ...

Math - Susan has some $2-coins and $5-coins. If there are 18 coins and the total...

algebra - There are 7 coins in a piggy bank. The coins are all quarters and ...

5th grade math - I need to use quarters, dimes, nickles and pennies to make the ...