Asked by Mai
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
Answers
Answered by
MathMate
"The probability of
drawing a red or blue marble
is one-half."
Means that Red+Blue=half * 50 = 25.
Can you do the rest?
drawing a red or blue marble
is one-half."
Means that Red+Blue=half * 50 = 25.
Can you do the rest?
Answered by
Mai
i don't know if i can do it...
Answered by
MathMate
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?
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?
Answered by
Katie
so there be 25 green, 15 blue, 10 red???
Answered by
MathMate
Correct, good job!
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