Mathematics, 12.12.2020 17:10 strevino9178
In kickboxing, it is found that the force, f, needed to break a board, varies inversely with the length, l, of the board. If it takes 15 pounds of pressure to break a board that is 7 feet long, how many pounds of pressure will it take to break a board that is 5 feet long?
Answers: 3
← k is the constant of variation
( multiply both sides by 7 )
← equation of variation
= 21 pounds
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In kickboxing, it is found that the force, f, needed to break a board, varies inversely with the len...
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