1. One person can load a truck in 25 minutes, a secondcan load it in 50 minutes,

Question

1. One person can load a truck in 25 minutes, a secondcan load it in 50 minutes, and a third can load it in 10minutes. How long would it take the three together to load thetruck? a. 5 3/11 minutes b. 6 1/4 minutes   c. 8 1/3minutes   d. 10 minutes e. 28 1/3 minutes 2. The approximate distance, S, in feet that an object fallsin t seconds when dropped from a height can be found by using theformula S=16t2. In 8 seconds the object will fall a. 256 feet b.1,024 feet c. 1084 feet d. 2,048 feet e. 15, 384 feet 1. One person can load a truck in 25 minutes, a secondcan load it in 50 minutes, and a third can load it in 10minutes. How long would it take the three together to load thetruck? a. 5 3/11 minutes b. 6 1/4 minutes   c. 8 1/3minutes   d. 10 minutes e. 28 1/3 minutes 2. The approximate distance, S, in feet that an object fallsin t seconds when dropped from a height can be found by using theformula S=16t2. In 8 seconds the object will fall a. 256 feet b.1,024 feet c. 1084 feet d. 2,048 feet e. 15, 384 feet

Explanation / Answer

a) 1/(1/25+1/50+1/10) = 6 1/4 b) S = 16 (8^2) = 1024 ft

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