A person is working at a constant rate. If he produces 15 details in 8 hours, how long does he need to work to produce 18 detail
s? Please write an equation!
1 answer:
Write and solve an equation of ratios:
15 details 8 hr
--------------- = -------
18 details x
Cross multiplying, 15x = 144. Therefore, x = 144/15 = 9.6 hours
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