Posted by **justin** on Monday, January 28, 2013 at 11:50pm.

The number of Roberto's baseball cards is 3/4 the number of David's cards. If Roberto gives 1/2 of his cards to David, what will be the ratio of Roberto's cards to David's cards?

- math -
**Steve**, Tuesday, January 29, 2013 at 11:04am
r = 3d/4, or 4r = 3d

r/2 / (3d/4 + r/2) = 2r/(3d+2r) = 2r/6r = 1/3

check:

If Roberto has 12 cards, David has 16

After Robert gives David 6,

6/18 = 1/3

- math -
**Kaha**, Wednesday, January 22, 2014 at 6:05pm
??

- math -
**Anonymous**, Monday, January 12, 2015 at 5:20pm
the number of roberto's baseball cards is 3/4 the number of david's cards. if roberto gives 1/2 of his cards to david, what will be the ratio of roberto's cards to david's cards?

- math -
**Anonymous**, Wednesday, March 25, 2015 at 3:06pm
hi

## Answer this Question

## Related Questions

- math - Trey keeps sports cards in 3 drawers. Each drawer contains exactly 120 ...
- math - bill and anig both have baseball cards. aniq has four times as many cards...
- Math Important! - Ozzie's Mother bought an assortment of greeting cards while ...
- 3rd grade math - A pile of index cards has a mixture of white, pink, yellow, red...
- math - A box contains 4 red cards, 6 blue cards, and 10 green cards. What is the...
- Maths - Three boys shared some cards. Peter had twice as many cards as Farid. ...
- 3rd Grade Math - Marlon has 4 baseball cards, Jake has 4 baseball cards, and Sam...
- math - Barry's deck of cards contains 40 blue cards and 70 red cards. Max's deck...
- Math - Marlon has 4 baseball cards, Jake has 4 baseball cards and Sam has 3 ...
- Calculus - Joe dealt 20 cards from a standard 52-card deck, and the number of ...

More Related Questions