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A jar contains 7 blue marbles, 12 red marbles, and 4 green marbles. What is the ratio of red marbles to the total number of marbles in the jar?

A jar contains 7 blue marbles, 12 red marbles, and 4 green marbles. What is the ratio of red marbles to the total number of marbles in the jar?
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1 vote
A jar contains 7 blue marbles, 12 red marbles, and 4 green marbles. What is the ratio of red marbles to the total number of marbles in the jar?

User Justin Harvey
by
8.2k points

2 Answers

1 vote
add all the numbers together and the divide by 12.
User Asad Ullah
by
8.4k points
6 votes

Add all the marbles to find the total number in the jar, which is 7+12+4, which is 23. There are 12 red marbles so the ratio is 12/23 or 12:23.
User Ali Moradi
by
7.3k points
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