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Rainbow [258]
3 years ago
8

alyssa answered 90% of her math test correctly. there were 50 questions on the test. how many questions did alyssa answer correc

tly?
Mathematics
1 answer:
marissa [1.9K]3 years ago
8 0
Since she answered 90% of her quiz correct, that means if she were to answer 10 questions, 9 would be correct. Lucky for us, 50 is a multiple of 10. If you multiply 10 by 5, you'd get 50. You would also need to multiply 9 by 5 as well. When you do this you'd get

45/50 correct. (divided them to make sure you get .90 if so, I'm right :)
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Maximum height is the y-value of the vertex. The number of seconds at maximum height is the x-value (aka axis of symmetry).

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Answer:

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Combine the bottom, too.

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Apply the fraction rule

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Cancel

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