moonlighthowl9442 moonlighthowl9442

25-09-2018
SAT

contestada

A manefacturer claims its cleanser works twice as fast as any other what test could be performed to sopport this claim? Explain your resoaning.

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Risa290 Risa290

06-10-2018

test one cleanser against another on two materials of the same kind (to make a fair test) and time it (to see if the claim that it works twice as fast is true)

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