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 onehalf. 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 onehalf."
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
GreenBlue=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  There are 25 red, blue, yellow and green marbles in a bag. Four of the ...
 MathGeometry  In a jar there are 18 marbles. There are 3 red marbles, 9 green ...
 math  sally has a bag with red,blue, and green marbles. She has twice as many ...
 7th grade math (probability)  I'm posting corrections from yesterday in ...
 7th grade math (probability)  I'm reposting corrections originally from ...
 math  In a jar there are 4 red marbles 5 green marbles and 7 blue marbles. 1 ...
 Math  A bowl has red,green and blue marbles.There are 95 red marbles.the nuber ...
 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...
More Related Questions