Tuesday

September 16, 2014

September 16, 2014

Posted by **Sarah** on Thursday, December 9, 2010 at 7:47pm.

- Math -
**Reiny**, Thursday, December 9, 2010 at 9:49pmlets add x yellow marbles

so (x+8)/(x+13) = 2/3

3x + 24 = 2x + 26

x = 2

must add 2 yellows

or

lets add y orange marbles

8/(y+13) = 2/3

2y + 26 = 24

2y = -2

y = -1

or we could take out 1 orange marble

Proof:

yellow = 8

orange = 4

total = 12

prob of yellow = 8/12 = 2/3

**Answer this Question**

**Related Questions**

math - A bag holds 8 yellow marbles and 5 orange marbles.How many and what color...

math - A bag holds 8 yellow marbles and 5 orange marbles. How many and what ...

math - A bag holds 3 yellow marbles and 7 blue marbles. how many and what color ...

math - A bag has 6 green marbles and 4 orange marbles.Find the least number of ...

Math - There are 150 green marbles and 100 yellow marbles in a bag that contains...

Math - Bobby has a bag of marbles with nine red marbles, 13 yellow marbles and ...

Discrete Math - A bag contains 5 red marbles, 4 yellow marbles, 3 green marbles...

math - A bag contains 5 green marbles, 3 yellow marbles and 2 red marbles. What ...

Math - A bag contains 3 red marbles, 5 yellow marbles and 6 orange marbles. ...

Math - Say that a bag contains 100 marbles: 30 red, 30 blue, 30 green, plus a ...