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3 years ago

What type of function is represented in the table?

Mathematics

1 answer:

Fynjy0 [20]3 years ago

6 0

I am pretty sure it linear

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In math class, 4 students complete individual surveys to determine the percentage of high school teachers that have a second job

dlinn [17]

Answer:

Option D) B and C

Step-by-step explanation:

we know that

To find out the percentage of high school teachers that have a second job, divide the number of teachers that have a second job by the total number of teachers

<em>Survey A</em>

$\frac{28}{110}=0.2545$

Convert to percentage

$0.2545(100)=25.45\%$

<em>Survey B</em>

$\frac{27}{90}=0.3$

Convert to percentage

$0.3(100)=30\%$

<em>Survey C</em>

$\frac{21}{70}=0.3$

Convert to percentage

$0.3(100)=30\%$

<em>Survey D</em>

$\frac{32}{80}=0.4$

Convert to percentage

$0.4(100)=40\%$

Compare the percentages

Surveys B and C have the same percentage

therefore

Surveys B and C show proportional results, because the ratio of the number of teachers that have a second job by the total number of teachers is equal (this number is the constant of proportionality k in a proportional relationship between two variables)

8 0

3 years ago

Raphael has 118 baseball cards arranged in an album. Each page of the album can hold 9 cards. How many pages are full and how ma

schepotkina [342]

The answer to this question is 1,062

4 0

3 years ago

Use an equation to find the value of k so that the line passing through (−4,k) and (6,−7) has a slope of −1/5.

Virty [35]

Answer:

k = -5

Step-by-step explanation:

Hi there!

$m=\displaystyle \frac{y_2-y_1}{x_2-x_1}$ where the two points are $(x_1,y_1)$ and $(x_2,y_2)$

Plug in the given information:

$\displaystyle -\frac{1}{5}= \displaystyle \frac{-7-k}{6-(-4)} \\\\\displaystyle -\frac{1}{5}= \displaystyle \frac{-7-k}{6+4} \\\\\displaystyle -\frac{1}{5}= \displaystyle \frac{-7-k}{10} \\\\\displaystyle -\frac{2}{10}= \displaystyle- \frac{-7-k}{10} \\\\-2=-7-k\\k=-5$