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igomit [66]
3 years ago
10

1. Emily filled an empty horse trough with water. The water level, in centimeters, is proportional to time elapsed, in minutes,

since she began filling the trough. The graph shows this relationship.
(a) What rate does the point represent? Explain.
(b) What is the unit rate for the situation in terms of centimeters/minute? Explain.
(c) Explain how the points and show that the water level varies directly with the time elapsed.
Mathematics
1 answer:
Pie3 years ago
3 0
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
depth of water is proportional to time
d = k*t
<span>d = 7/2 * t </span>
<span>a) the point (2,28) represents the rate 28/8 </span>
b) 3.5 cm/sec
<span>c) the slope between  (8, 28) and (6, 21) is 7/2 = 3.5</span>

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I need help on this question
Morgarella [4.7K]

Answers : A and D

Step - by - step explanation :

tip : when finding constant of proportionality it's always Y divided by X

A = what is 22.5 divided by 3 ?  7.5 ( now multiply 7.5 by the next X [ 4 ] )

what is 7.5 x 4 ?  30 ( and since on the graph it also says 30 then you can assume this one has a proportional relationship )

B = what is 12 divided by 3 ?  4 ( now multiply 4 by the next X [ 5 ] )

what is 4 x 5 ?  20 ( and because the graph says 25 then you know it's NOT a proportional relationship )

C = what is 8.5 divided by 2 ?  4.25 ( now multiply 4.25 by the next X [ 5 ] )

what is 4.25 x 5 ?  21.25 ( and because the graph says 22.5 then you know it's NOT a proportional relationship )

D = what is 10 divided by 2 ?  5 ( now multiply 5 by the next X [ 3 ] )

what is 5 x 3 ?  15 ( and since on the graph it also says 15 then you can assume this one has a proportional relationship )

( sorry it took me so long to write this )

6 0
2 years ago
What are these numbers from least to greatest? 5.78, -5.9, 58%, -23/4
Feliz [49]

Answer:

-5.9, -23/4, 58%, 5.78

7 0
3 years ago
Read 2 more answers
pls helpppp c=30m+50 and c=20m+100. solve for c and show your work.
Contact [7]

Answer:c=200

Step-by-step explanation:

30(5) + 50 = 200

20(5) + 100 = 200

-------------------------------|

100 30m

- 50 - 20m

——— ———

50 10m 50/10 = 5 [m=5]

7 0
3 years ago
15 DVDs, 1/5 were documentaries. How many of the movies were documentaries
Maksim231197 [3]

Answer:

3 of the DVDs were documentaries.

Step-by-step explanation:

We know that at first, there were 15 DVDs in total.

Now, we need to find how much 1/5 of 15 DVDs were equal to.

1/5 of 15 is equal to the number 3.

So, that means our answer is 3 of the DVDs are documentaries.

Hope this helps.

3 0
3 years ago
Read 2 more answers
Coach barron bought 66 pounds of ice cream for the end of the year little league social. there are 8 teams, each with 12 people.
frozen [14]
Each person gets about 9.75 ounces of ice cream 
4 0
3 years ago
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