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78 % of the class scored a C or above on their test. If there are 35 students in the class, how many scored a C or higher? Write and solve a proportion for this situation.

User Aloj
by
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2 Answers

5 votes

Answer:

27 students

Explanation:


(78)/(100) =(x)/(35) \\

cross multiply and you get 27

User Arsena
by
7.4k points
5 votes

All this question is trying to ask is to find 78% percent of the total number of student in the class.

So first convert 78 to decimal by dividing it by 100:
(78)/(100) = 0.78

Next multiply that with the total number of students which is 35.

So,
0.78 * 35 = 27.3

Now I don't think there can be a decimal here. The question must be wrong or the percentage might be incorrect. But, just for sake, we'll round it up so the final answer would be:
27

The proportion would be:
273:10

User Mrig
by
8.0k points

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