Posted by **Amber** on Monday, January 14, 2008 at 6:49pm.

ok this is really confusing me

1. Leo held a garade sale. He priced all the items at a dim or a quarter. His sales totaled $23.95 for 139 coins. How many dimes and quarters did he have?

- Algebra -
**Amber**, Monday, January 14, 2008 at 6:54pm
your supposed to solve my graphine. subsitution or elimination

- Algebra -
**Damon**, Monday, January 14, 2008 at 7:00pm
d dimes and q quarters

d+q = 139

10 d + 25 q = 2395

I would solve the first equation for d = (139 - q)

then substitute that value for d in the second equation

however you could just as well multiply the first equation, both sides, all terms, by ten. the if you subtract the first equation from the second, you eliminate d.

## Answer This Question

## Related Questions

- math - greg has 2 quarter, 1 dim, and 3 nicles. stan has 3 quarters, 2 dimes, ...
- algebra - A store sold 60 DVDs. Some of these were on sale and sold for $4.95 ...
- 5th grade-math - Sheila brought $1.95 in coins to spend at the bake sale. Her ...
- algebra - total $3.25 worth of coins nickels, dimes, quarters 2morenickels than ...
- Math - Assume that you select 2 coins at random from 5 coins: 3 dimes and 2 ...
- algebra - A collection of thirty-seven coins consists of nickels, dimes and ...
- math - You have 50 coins, all quarter's and dimes. How would you know how many ...
- MATH - IF U WANT TO MAKE A DOLLAR OUT OF 50 COINS HOW DO YOU DO IT? PLEASE HELP ...
- algebra - A box contains $7.80 in nickels, dimes, and quarters. There are 46 ...
- algebra - Benjamin has $7.40 in change in his pocket, all in dimes and quarters...

More Related Questions