Posted by **Mai** on Tuesday, March 29, 2011 at 10:40am.

There are fifty marbles in a

sack: red, blue and green.

There are ten more green

than blue marbles in the

sack. The probability of

drawing a red or blue marble

is one-half. Write and solve

an equation to determine

how many of each color

marble is in the sack

- math -
**MathMate**, Tuesday, March 29, 2011 at 11:03am
"The probability of

drawing a red or blue marble

is one-half."

Means that Red+Blue=half * 50 = 25.

Can you do the rest?

- math -
**Mai**, Tuesday, March 29, 2011 at 11:14am
i don't know if i can do it...

- math -
**MathMate**, Tuesday, March 29, 2011 at 11:25am
Known facts:

Red+Blue+Green=50

Red+Blue=25

Green-Blue=10

Can you juggle a little with the above equations to come up with the answer?

- math -
**Katie**, Tuesday, March 29, 2011 at 11:32am
so there be 25 green, 15 blue, 10 red???

- math :) -
**MathMate**, Tuesday, March 29, 2011 at 11:52am
Correct, good job!

## Answer this Question

## Related Questions

- Math-Geometry - In a jar there are 18 marbles. There are 3 red marbles, 9 green ...
- math - There are 25 red, blue, yellow and green marbles in a bag. Four of the ...
- math - sally has a bag with red,blue, and green marbles. She has twice as many ...
- algebra2/ Trigonometry - A bag contains 24 green marbles, 22 blue marbles, 14 ...
- math - a bag contains 5 blue marbles 4 red marbles and 1 green marble. what is ...
- math - You draw 2 marbles from a bag containing 3 blue marbles, 2 green marbles...
- Math - A bag contains nine red marbles, four green marbles, three blue marbles, ...
- math plz help - The contents of a jar holds 4 red marbles, 7 blue marbles, and 5...
- Math, please check work - A bag contains 7 red marbles, 2 blue marbles, and 1 ...
- math - A bag contains 7 red marbles, 2 blue marbles, and 1 green marble. If a ...