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kondor19780726 [428]
3 years ago
11

Jill got an 85% on a math test if there were 40 questions in total,how many did she get wrong?

Mathematics
2 answers:
KengaRu [80]3 years ago
5 0
Yeah she got 6 questions wrong

GrogVix [38]3 years ago
3 0
You can solve this by setting up a proportion. You can put the number of items correct over the total number. and substitute the unknown number with x.

\frac{85}{100} = \frac{x}{40}   Cross-multiply
3400 = 100x   Divide both sides by 100
34 = x

40 - 34 = 6

So, Jill got 6 questions wrong.
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