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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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Please solve this problem using like terms!<br> 10+4(−8q−4)
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Answer:

−32q−6

Step-by-step explanation:

10+4(−8q)+4⋅−410+4(-8q)+4⋅-4

Multiply −8-8 by 44.

10−32q+4⋅−410-32q+4⋅-4

Multiply 44 by −4-4.

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4 0
3 years ago
PLEASE HELP ME!
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Answer:

54


Step-by-step explanation:

Let number of adult tickets sold be a

Let number of children tickets sold be  c


<u>139 tickets were sold:</u>

we can write:

a+c=139


<u>a total sales of $972.00:</u>

we can write:

5.4c+9.5a=972


Now solving for c in the first equation and substituting that into 2nd equation, we can solve for a, what we need. So:

c=139-a\\-------\\5.4c+9.5a=972\\5.4(139-a)+9.5a=972\\750.6-5.4a+9.5a=972\\-5.4a+9.5a=972-750.6\\4.1a=221.4\\a=54


Hence 54 adult tickets were sold.



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