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eliwas555
02.01.2020 •
Mathematics
Three out of 200 machine parts were found to be defective.
about how many parts would be expected to be defective out of 2500 parts?
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Ответ:
(200 / 3) = (2500 / x)
From this equation, x equals 37.5. Therefore, there are approximately 38 defective parts.
Ответ:
Maria rate = 1/13 job/hr
Felipe rate = 1/16 job/hr
Together rate = 1/x job/h
Step-by-step explanation: rate + rate = Together rate
1/13 + 1/16 = 1/x
16x + 13x = 13*16
29x = 13*16
x = 7.17 hrs = 7 hr 10 min 12 seconds (time to do the job together)
Cheers,
Rubberduck100000.