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The diameter of a marble is 3/5 of an inch.How many marbles are needed to make a row of marbles 6 inches long?
The diameter of a marble is 3/2 of an inch.How many marbles are needed to make a row of marbles 9 inches long?
16 Answers
- bunstihlLv 62 decades agoFavorite Answer
5 marbles will make a row 3 inches long. (3/5*5=3), so double that. 10 marbles should make a row 6 inches long.
- Anonymous2 decades ago
Criss-cross.
If 1 marble = 3\5 of an inch
x marbles= 6 inches
3\5 x = 6
x= 10 inches
- Anonymous2 decades ago
10
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- Anonymous2 decades ago
6 marbles to make 9 inches long
- 2 decades ago
people r stupid if they think 6 is a correct answer. 6 marbles will equal 18/5 which is 3.something (i'm doing this in my head) 10 is the only correct answer because 10 marbles would be 30/5 which will give you your answer of 6inches which you wanted.
Source(s): My head - 2 decades ago
So for the first question, you have 0.6 inches per marble. 6 divided bo 0.6 is 10, so you need ten marbles.
For the second question, you have 1.5 inches per marble. 9 divided by 1.5 is 6, so you need six marbles.
