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Slav-nsk [51]
3 years ago
12

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. A Table titled Test Time, showing Number of Questions, Time per Item in minutes, and Total Time in minutes. The first row shows Multiple Choice, with m, 3, and 3 m. The second row shows Free Response, with 15 minus m, 8, and x. The third row shows Total, with 15, blank, and 55. Which value could replace x in the table? 7 – m 23 – m 8(15 – m) 8(15) – m

Mathematics
2 answers:
scoundrel [369]3 years ago
7 0

Answer:

8(15 – m)

Step-by-step explanation:

Just Did The Test

zloy xaker [14]3 years ago
3 0

Answer:

<h2>8(15-m)</h2>

Step-by-step explanation:

In the table, <em>x </em> represents the total time students take to respond free-response question. So, the replacement of the variable must be the product between the number of free-response questions and the time per questions students take.

Number of free-response questions: 15-m

Time per Item (minutes): 8

Therefore the product would be: 8(15-m), which is the expression that must replace <em>x.</em>

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2 years ago
graph the line that passes through the point (0, -3) and is perpendicular to another line whose slope is 2
Nadya [2.5K]

Answer:

 y = -1/2x -3

Step-by-step explanation:

The line perpendicular to one with a slope of 2 will have a slope that is the negative reciprocal of 2, that is, -1/2. The given point is the y-intercept of the required line, so we can write its equation directly in slope-intercept form:

y = mx + b

where m is the slope (-1/2), and b is the y-intercept (-3). Your line is ...

 y = -1/2x -3

4 0
3 years ago
if there were 243 students and 2 students that were out of state were chosen every time 7 of the students that were in state wer
katen-ka-za [31]
The ratio 2:7. Add 7 and 2 together to get 9. Then divide 243 by 9 which is 27. 27x2 is 54 so. There was 54 students out of state. And 189 that were in state
7 0
3 years ago
Round 43.586 to the nearest tenth. Pleaseee help ASAP
Dahasolnce [82]

Answer:

43.6

Step-by-step explanation:

I hope this helps you :)

3 0
3 years ago
Read 2 more answers
Identify the 27th term of an arithmetic sequence where a1 = 38 and a17 = -74. . A. -20.5 . B. -151 . C. -22.75 . D. -144 . .
Dennis_Churaev [7]
In order to solve for a nth term in an arithmetic sequence, we use the formula written as:

an = a1 + (n-1)d

where an is the nth term, a1 is the first value in the sequence, n is the term position and d is the common difference.

First, we need to calculate for d from the given values above.  
<span>a1 = 38 and a17 = -74
</span>

an = a1 + (n-1)d
-74 = 38 + (17-1)d
d = -7

The 27th term is calculated as follows:

a27 = a1 + (n-1)d
a27= 38 + (27-1)(-7)
a27 = -144 -----------> OPTION D
7 0
3 years ago
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