me1233456
14.07.2019 •
Mathematics
Alocal dairy has three machines to fill half-gallon milk cartons. the machines can fill in the dialy quota in 6 hours, 7 hours, and 5.25 hours, respectively. find how long it takes to fill the daily quota if all three machines are running. it takes _ hours to fill the daily quota if all three machines are running. show me how to do this, and i will give a medal. i think the beginning equation is: 1/6+1/7+1/5.25=1/x. my answer is 0.50 hours, nut i just want to be sure. you!
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Ответ:
1/x = 1/2 That's what you got with your equation. So far so good. That does not tell you what x is though. You have go just a bit further.
1/x = 1/2 Cross multiply
x = 1 * 2
x = 2 It takes 2 hours to complete with all three machines working.
Ответ: