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ivann1987 [24]
3 years ago
13

Sally is taking a test

Mathematics
2 answers:
artcher [175]3 years ago
7 0
Answer: There were 20 questions and she missed three.

First of all, you need to simplify 85/100.

85/100 / 5/5 = 17/20.

Now that you know how many questions were on the test, subtract 17 from 20.

20 - 17 = 3

So in conclusion, the test had 20 questions and she missed three.

But this question doesn’t have enough info to be honest, if you multiply 17/20 with any number it’s still going to be 85%.
miskamm [114]3 years ago
6 0

Answer:

There was 20 questions on the test.

She got 3 wrong.

Step-by-step explanation:

\frac{85}{100} = \frac{17}{20}

20 - 17 = 3

There was 20 questions on the test.

She got 3 wrong.

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\begin{aligned} &y=2x +1 \\\\ &x-y=-3 \end{aligned} ​ y=2x+1 x−y=−3 ​ Is (2,5)(2,5)left parenthesis, 2, comma, 5, right
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We can do this by substitution of the given point into the equations and see if it holds.

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Therefore, <u>the point (2,5) satisfies the first equation.</u>

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<u />

Therefore, (2,5) is a solution of the system.

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