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strojnjashka [21]
3 years ago
10

between 9 p.m. and 6:36 a.m.​, the water level in a swimming pool decreased by 6/25. assuming that the water level decreased at

a constant​ rate, how much did the water level drop each​ hour?
Mathematics
1 answer:
Licemer1 [7]3 years ago
8 0

Answer:

The hourly drop between the two times is 1/40

Step-by-step explanation:

Firstly, we need to find the difference in time between 9 pm and 6:36 am

That would be 9 hours and 36 minutes

It would be needed to convert 36 minutes to hours

Mathematically, 60 minutes = 1 hour

So 36 minutes = (36 * 1)/60 = 36/60 = 0.6

So the difference between the two time is simple 9.6 hours

So the total drop during the time is given by 6/25

So the hourly drop will be 6/25 divided by 9.6

= 6/25 * 1/9.6 = 6/240 = 1/40

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If c(x)=4x-2 and d(x)= x^2+5x what is (c*d)(x)
Afina-wow [57]
c(x)=4x-2\\d(x)=x^2+5x\\\\(c\times d)(x)\\=(4x-2)(x^2+5x)(x)\\=4x^3+20x^2-2x^2-10x(x)\\=4x^3+18x^2-10(x)

If I understood correctly
7 0
2 years ago
Read 2 more answers
Find m∠1<br><br> A. 38 degrees<br> B. 42 degrees<br> C. 52 degrees<br> D. 78 degrees
Zepler [3.9K]
Let's solve this problem step-by-step.

Let's first establish the following formula:

Angle sum of a triangle = 180°

Also, note that the square shape in the top-right corner of the triangle indicates that it is a right-angle. This means that, that angle is equal to 90°.

Now, let's establish the equation we will be using to solve this problem based on the previous information as displayed below:

m + 38° + 90° = 180°

We will now simply solve the equation in order to obtain the value of ( m ) as display below:

m + 38° + 90° = 180°

m = 180 - 38 - 90

m = 52°

ANSWER:

Therefore, the answer is:

C. 52 degrees.


Please mark as brainliest if this was helpful! <3
Thank you : )
4 0
2 years ago
I'VE BEEN STRUGGLING ON THIS QUESTION FOR DAYS SOMEONE PLEASE HELP ME PLEASE!!!
Mars2501 [29]

Answer:

<h2>13.64%</h2>

Step-by-step explanation:

When finding a percent of change, subtract the original from the new.

150 - 132 = 18

Then put the result over the original number, and divide.

18/132

Divide to find the percentage of change.

about 13.64% rounded

Hope this helped. If it did, then....

<em>PLEASE MARK BRAINLIEST</em>

6 0
3 years ago
Read 2 more answers
How to do 2/5 = (x-3)/(7x+15)
Zigmanuir [339]

Answer:

x =  - 5

Step-by-step explanation:

To work out this question you have to first cross multiply.

\frac{2}{5} =  \frac{(x - 3)} {(7x + 15)}  \\ \\  2(7x + 15) = 5(x - 3)

When you cross multiply you will get the equation above. Therefore

(2 \times 7x) + (2 \times 15) = (5 \times x) \\   - (5 \times  3) \\ \\ 14x + 30 = 5x - 15 \\ \\ 14x - 5x =  - 30 - 15 \\ \\ 9x =  - 45

Therefore

\frac{9}{9} x =  \frac{ - 45}{9}  \\ \\ x =  - 5

6 0
2 years ago
Read 2 more answers
Help me I HATE MATH!!!
dsp73

Answer:

2, 3, ,6 ,9. (YOUR ANSWER)

All numbers listed below!

15282 ÷ 1 = 15282

15282 ÷ 2 = 7641

15282 ÷ 3 = 5094

15282 ÷ 6 = 2547

15282 ÷ 9 = 1698

15282 ÷ 18 = 849

15282 ÷ 27 = 566

15282 ÷ 54 = 283

15282 ÷ 283 = 54

15282 ÷ 566 = 27

15282 ÷ 849 = 18

15282 ÷ 1698 = 9

15282 ÷ 2547 = 6

15282 ÷ 5094 = 3

15282 ÷ 7641 = 2

15282 ÷ 15282 = 1

4 0
3 years ago
Read 2 more answers
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