the ratio of red marbles to blue marbles in a bag is 3:4. which of the following is a possible total number of marbles is it 21, 30, 32, or 40.
1 answer:
Answer:
21
Step-by-step explanation:
so if the ratio is 3:4
then we can also write the ratio as 3x:4x
where the total is 7x marbles and we see we have to chose the one that is divisible by 7 which is 21.
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