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in the last test 40% of all students in Mrs.Well's class got grade A. How many students are studying in this class, if there were 28 A's on the test?
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in the last test 40% of all students in Mrs.Well's class got grade A. How many students are studying in this class, if there were 28 A's on the test?

User Oam
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2 Answers

5 votes
Half of 40 percent is 20 percent so 20 percent is half of 28.28 divided 2 is 14.Now we know 20 percent is 14.Now what times 20 is 100. 20 x 5 is 100. Now because we multiplied 20 by 5 we multiply 14 by 5. So 70 students
User Mihir Bhatt
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7.9k points
1 vote

Answer:

28 / x = .4

28 / .4 = x

x = 70 total students

Explanation:


User Shaybakov
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8.2k points
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