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Ne4ueva [31]
3 years ago
11

Can someone help with the questions in the picture with #22 and both parts of part 23

Mathematics
2 answers:
poizon [28]3 years ago
5 0
#22 is Ian. #23.a. is 77%. b. is Yes. c. is 16.
meriva3 years ago
5 0
22. It says the completion percentage is the number of completions divided by the number of passes. You will get a decimal first, then you change it into a percentage by either multiplying it by 100, or moving the decimal point two places to the right.
Tom: 10/22 = 0.45 = 45%
Ian: 9/18 = 0.5 = 50%
Ian has a higher completion percentage.

23. You get 17 out of 22 questions correct.
a) 17/22 = 0.77 = 77%
Your percent is 77.
b) You passed the test because you had 7% above the lowest score to pass.
c) To find the minimum number of correct answers needed to pass the test, replace the correct number of answers with "x" and make it equal to 0.70 because that's what you need to pass.
x/22 = 0.70
x = 15.4
Because you're dealing with a test, so only whole numbers are possible, you need to round that number up, since you can't go down or you will be below the minimum.
15.4 = 16
The minimum number of correct answers you need is 16 (out of 22).
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