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Len [333]
3 years ago
7

I need help question:how many questions would you need to get correct on a test that has 30 questions to get at least 70% correc

t?
Mathematics
2 answers:
GaryK [48]3 years ago
4 0

Answer:

21 answers.

Step-by-step explanation:

First, change the percentage into a decimal point. Move the decimal point to the left two place values and drop the percentage sign:

70% = 70/100 = 0.70

Next, multiply 0.70 with the total amount of questions (30):

30 x 0.70 = 21

21 answers must be correct.

Check:

Divide 21 with 30:

21/30 = 0.70 = 70%

~

natali 33 [55]3 years ago
3 0

Answer:

25

Step-by-step explanation:

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3 years ago
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