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In a bag of 25 marble's 7 are blue 4 are green 8 are red and the rest are yellow what is the ratio of blue marble's to yellow marble's?
25 marbles = 7 blue + 4 green + 8 red + 6 yellow The ratio of blue to yellow marbles is 7:6
1 Sonya has a bag of 54 different-colored marbles The marbles are blue red and green and are on the ratio 4 3 2 How many marbles does Sonya have that are a red blue?
Sonya has no red blue marbles. All she has are 24 blue, 18 red and 12 green.
What is the number of each colour of marbles in a bag of 76 marbles if the ratio of red marbles to green marbles is 2 to 3 and the ratio of green marbles to blue marbles is 9 to 4?
The ratios are: red : green = 2 : 3 = (2×3) : (3×3) = 6 : 9 green : blue = 9 : 4 → ratio of red : green : blue = 6 : 9 : 4 There are 6 + 9 + 4 = 19 parts 76 marbles ÷ 19 parts = 4 marbles per part → red: 6 parts = 6 × 4 marbles per part = 24 red marbles → green: 9 parts = 9 × 4 marbles per part = 36 green marbles → blue: 4 parts = 4 × 4 marbles per part = 16 blue marbles To check: red + green + blue = 24 marbles + 36 marbles + 16 marbles = 76 marbles in the bag.
What is the sample space for choosing a marble out of a bag with 3 green 4 blue and 7 purple marbles?
green blue purple answer
Karen has a bag of 4 blue balls 2 green balls 1 red ball What is the chance that she will pull a green ball from the bag?
2 in 7.
