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-BARSIC- [3]
3 years ago
8

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.

There are 15 questions on the test and the students have been given 55 minutes to complete it.
Which value could replace x in the table?
7 – m
23 – m
8(15 – m)
8(15) – m
Mathematics
2 answers:
SpyIntel [72]3 years ago
5 0

Let

x------> the number of multiple choice question

y------> the number of free response question

we know that

3x+8y=55 -----> equation A

x+y=15

x=15-y -----> equation B

Substitute equation B in equation A

3[15-y]+8y=55

45-3y+8y=55

5y=55-45

5y=10

y=2

Find the value of x

x=15-y

x=15-2=13

therefore

<u>the answer is</u>

the number of multiple choice question are 13

the number of free response question are 2

Allisa [31]3 years ago
4 0
<span>8(15 – m)....................</span>
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