an assembly line wrker can attach her prt of the assembly n 1 1/2 min. how many prts can she attach n an hr?

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an assembly line wrker can attach her prt of the assembly n 1 1/2 min. how many prts can she attach n an hr?

2006-07-09 19:27:41 · 4 answers · asked by Brent M 1 in Science & Mathematics ➔ Mathematics

4 answers

You divide 60 by 1.5 and get 40.

2006-07-09 20:08:20 · answer #1 · answered by Eric X 5 · 0⤊ 0⤋

Since the worker's time is in min, change an hour to 60 minutes so you are dealing with a same unit of measurement, then

60 / 1.5 = 40 prt

Long hand: 60 min / (1.5 min / prt) = 60 min x (prt / 1.5 min), the 'min' cancelled (one in the numerator and one in the denominator) and you are left with 40 prt.

2006-07-10 02:52:31 · answer #2 · answered by Retainer Nut 2 · 0⤊ 0⤋

2006-07-10 02:33:31 · answer #3 · answered by Dark 3 · 0⤊ 0⤋

1 1/2 min = 90 secs
1 hour = 3600 secs
3600 / 90 = 40
The answer is 40

2006-07-10 02:34:59 · answer #4 · answered by drchristian 2 · 0⤊ 0⤋