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Paha777 [63]
3 years ago
9

Please Help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
mr Goodwill [35]3 years ago
5 0

1. A 20,000 gallon swimming pool contains 5000 gallons of water when a hose is placed in the pool and begins adding water at a rate of 1250 gallons per hour.


Use the Segment tool to plot a graph representing the volume of water in the pool over time from when the hose is placed in the pool until the pool is full.  Answer: (0,5000) (12,20000)

2. Sherry needs to sell T-shirts as a fundraiser for a charity. She starts with 40 T-shirts and begins selling at a constant rate of 5 T-shirts each day.



Use the Segment tool to plot a graph representing the number of T-shirts Sherry has left to sell from the time she begins selling until the T-shirts are gone. Answer: (0,40) (0,8)

3. For a certain type of sand, 1 cubic foot weighs 80 pounds.


Use the Ray tool to make a graph that shows the weight, w, of n cubic feet of this sand. Answer: (0,0) (3,240)

4. Antoine is graphing the total number of prizes needed, P, based on the number of entries in a contest, E. He knows that for every 10 entries, he will need 1 prize, and he would like for his graph to show the total number of prizes needed for 100 and 150 entries.


Select from the drop-down menus to correctly complete each statement.


To best show this information, the scale for the P-axis of his graph should go from 0 to at least 15, and the E-axis of his graph should go from 0 to at least 150

5. A company finds that on average, they use 43 minutes for each meeting.


An employee sketches a graph to show the total amount of time in minutes, T, used for m meetings. The graph shows the value of T for 1 to 5 meetings.


 If the employee counts by 10's, what should be the largest value on the T-axis of his or her graph so that the scale is the most appropriate for the given information?



Drag and drop the correct number into the box.


220

Hope this helped

Margaret [11]3 years ago
3 0

Let

n-------> the cubic feet of the sand

w-----> the weight of the sand

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y=kx

In this problem the unit rate is equal to the constant of proportionality k

k=80\frac{pounds}{feet^{3}}

the linear equation is

w=80n

using a graphing tool

The answer in  the attached figure

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What number multiplied by 0.5, Multiplied by 1/3, square the number, add one, equals 50?​
neonofarm [45]

Answer:

42

Step-by-step explanation:

Let that number be x

x is multiplied by 0.5, 1/3, then squared

(0.5/3 x)^2

Add 1: (0.5/3 x)^2 +1

Make it equal to 50

: (0.5/3 x)^2 +1 = 50 now solve

(0.5/3 x)^2 =50-1

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GOOD LUCK AND HOPE IT HELPS:))

4 0
3 years ago
Suppose we choose7 objects without replacement from 9 objects
stiks02 [169]

Answer:

<h2>181 440</h2>

Step-by-step explanation:

We have 9 choices for Choosing the first object

              8 choices for Choosing the 2nd object

              .

              .

              .

             3 choices for Choosing the seventh object

Therefore if we want to choose7 objects without replacement from 9 objects we have : 9×8×7×6×5×4×3 = 181 440

Also ,we can calculate it this way :

9P7 = 181 440

7 0
2 years ago
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