30 marbles in a bag. 10% of them were blue and 60% of them were red. The rest are yellow. How many of the marbles are yellow?
1 answer:
Answer:
Step-by-step explanation:
Ok, so we know that there are 30 marbles
to find the amount of blue marbles we need to find 10percent of 30
10percent of 30= 30/10=3
3blue mables
60percent of 30=18
18red marbles
18+3=21
30-21=9 yellow marbles
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