So the right answer is 3.
please see the attached picture for full solution
Hope it helps
Good luck on your assignment
Answer:
3 minutes
Explanation:
We can use ratios to solve
3 blocks 1 block
----------------- = --------------
9 minutes x minutes
Using cross products
3 * x = 9*1
3x = 9
Divide each side by 3
3x/3 = 9/3
x = 3
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