Answer:
68 Questions
Step-by-step explanation:
When using the symbol % (percent), it means that percent of 1. So for example: 90% = 0.9 because 90/100 simplifies to 9/10, which is also 0.9.
In this problem, the question basically is: What is 90% of 75? The math equation to use would be: 75×0.9.
75
<u>x .9</u>
67.5
Doing the math, 90% of 75 is 67.5. In the problem, we don't know if you can get a half-credit for a problem, so we have to round 67.5 to the nearest whole number. The number 67.5 rounds up to 68.
So, if you have 75 questions, you need to get correct <u><em>68 questions</em></u> in order to get a 90%.
Hope this answer helps you!
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