The speed v of a gear varies inversely as the number of teeth t. If a gear that has 42 teeth makes 24 revolutions per minute (rp
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Jack was planting a tree. He was to dig a hole that was 3 feet deep for every 5 feet of tree height. How deep should he dig the hole for a tree that is 17feet high.
Calculations
Cross multiplication
= 
5x = 2 x 13
Divide by 5 to isolate x
= 
x = 10.2
Answer = 10.2
Calculations
Cross multiplication
5x = 2 x 13
Divide by 5 to isolate x
x = 10.2
Answer = 10.2