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Yuki888 [10]
3 years ago
10

penny recorded the hours she worked as a waitress and how much money she earned in tips. this scatterplot shows her results. bas

ed on the line of best fit, which of the following statements is true?

Mathematics
2 answers:
ExtremeBDS [4]3 years ago
8 0

Answer: D- “as the number of hours worked increases by 1 hour, the amount of tip money earned increases by $10"

*Explained in my comment previously*

Leokris [45]3 years ago
7 0

Answer:

Alternative D is correct

Step-by-step explanation:

As the number of hours worked increases by 1 hour, the amount of tip money earned increases by 10 dollars. The value 10 is simply the slope of the line of best fit which is calculated as; the change in y/the change in x. Using the two points on the line, we calculate the slope as ; (80-20)/(8-2) =10. The slope measures the change in the y-variable for every unit change in x.

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Tickets to a movie cost five dollars for adults and three dollars for students a group of friends purchase 18 tickets for $82 ho
Dvinal [7]

Answer: They purchased 14 adult tickets and 4 kids' tickets.

Step-by-step explanation:

14 x 5 = 70

3x4=12

and then add 70 plus 12 to get 82 dollars

5 0
3 years ago
Subtract this pair of fractions<br> 1/3x-5/3x
babunello [35]

Answer:

-7x/6

Step-by-step explanation:

x/2-5x/3

Taking LCM

3x/6-10x/6

(3x-10x)/6

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6 0
3 years ago
Find the slope of the line that contains the<br><br>point (4, −9) and has a y intercept of 2.
ASHA 777 [7]

Answer:

<h2>         m = -¹¹/₄</h2>

Step-by-step explanation:

The equation of a line with slope of <em>m</em> and y-intercept of <em>b</em> is: y = mx + b

b = 2 and line contains the point (4, -9), so:

-9 = m×4 + 2          {subtract 2 from both sides}

-11 = 4m                   {divide booth sides by 4

m = -¹¹/₄

5 0
3 years ago
Evaluate <br><br>2³ + 4 • 2 - 7<br><br>I need help fast its a test ;-;​
djverab [1.8K]

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5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A clogged bathtub drains at a constant rate. The amount of water in the bathtub changes by –3.75 gallons in one hour. What is th
IRINA_888 [86]

Change in the amount of water in the bathtub after -48.75 gallons. Negative sign means water get reduce by 48.75 gallons in bathtub.

<h3><u>Solution:</u></h3>

Given that

A clogged bathtub drains at a constant rate.

The amount of water in the bathtub changes by –3.75 gallons in one hour.

Need to determine change in the amount of water in the bathtub after 13 hour.

Change in amount of water in bathtub in one hour = -3.75 gallons  

As given that clogged bathtub drains at a constant rate, so  

Change in amount of water in bathtub in 13 hours = 13 x Change in amount of water in bathtub in 1 hours

=> Change in amount of water in bathtub in 13 hours = 13 x ( -3.75 ) = -48.75 gallons

Hence change in the amount of water in the bathtub after -48.75 gallons. Negative sign means water get reduce by 48.75 gallons in bathtub.

4 0
3 years ago
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