Posted by **steven** on Friday, March 30, 2012 at 4:49pm.

Salma's penny bank is 1/2 full. After she adds 360 pennies, it is 4/5 full. How many pennies can Salma's bank hold?

- math -
**Ms. Sue**, Friday, March 30, 2012 at 4:54pm
1/2 = 5/10

4/5 = 8/10

8/10 - 5/10 = 3/10

3/10x = 360

x = 360 / (3/10)

x = 360 * 10/3

x = 1200

- math -
**Bosnian**, Friday, March 30, 2012 at 5:01pm
( 1 / 2 ) x + 360 = ( 4 / 5 ) x

360 = ( 4 / 5 ) x - ( 1 / 2 ) x

360 = ( 8 / 10 ) x - ( 5 / 10 ) x

360 = ( 3 / 10 ) x

( 3 / 10 ) x = 360 Multiply both sides by 10

3 x = 360 * 10

3 x = 3600 Divide both sides by 3

x = 3600 / 3

x = 1200 pennies

## Answer This Question

## Related Questions

- math - A child's coin bank contains $2.58 in pennies and nickels. If the number...
- math - suppose you wanted to place 100,000 pennies in large coin banks. If you ...
- math - Suppose u want to place 1,000,000 pennies in large coin banks. If u put ...
- MATH - Suppose you wanted to place 1,000,000 pennies in large coin banks. If you...
- math - Suppose you wanted to place 1,000,000 pennies in large coin banks. If you...
- math - suppose you wanted to place 1,000,000 pennies in large coin banks. if you...
- math - suppose you wanted to place 1,000,000 pennies in large coin banks. If you...
- Math - Suppose there are 500 pennies in a row... (math problem)? The pennies are...
- Math - Hailey has bottles that hold 678 pennies each. About how many pennies ...
- pre algebra - in vanessas coin bank there are 4 times as many quarters as ...

More Related Questions