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100 Points! Algebra question. Please show as much work as possible. Photo attached. Thank you!

100 Points! Algebra question. Please show as much work as possible. Photo attached-example-1

1 Answer

5 votes

Answer:

1,600 of the 2,000 significantly improved

Explanation:

I will just show you the mathematics behind the question, but will leave the rest up to you:

We are trying to find what is 80% of the 2,000 people to see how many the ointment helped and not helped:

2000 x 0.8 = 1600, therefore the ointment helped 1,600 of the 2,000.

2000 - 1600 = 400, therefore the ointment did not help 400 of the 2,000.

I would guess that it is a valid conclusion, as 80% of 2,000 test helped, which would mean it most likely will help with most people. But, if it was something like 80% of 10 people, that would almost be like random chance, but because 2,000 is a high number, it most likely does help.

Hope I helped :)

User JMoravitz
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