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What’s the total of marbles in the box?

What’s the total of marbles in the box?
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1 vote
What’s the total of marbles in the box?

What’s the total of marbles in the box?-example-1
User Berco Beute
by
7.9k points

2 Answers

5 votes
Answer: 140
Step 1: make a proportion

15%/21= 100%/x

Step 2: cross multiply

0.15X=21

Step 3: solve for X

21/0.15=X= 140

User Nasser Hadjloo
by
8.5k points
3 votes

140 marbels are in the box

User MahoriR
by
8.8k points
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