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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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Natalka [10]
To find the height that the rocket has reached, we can use the following equation to calculate distance.
s = ut + 1/2 at²
s - distance - h
u - initial velocity  - 64 ft/s x 0.3048 m/ft = 19.5 m/s
a - acceleration, since the rocket is travelling upwards against gravitational acceleration, its said to be deceleration. therefore value is -9.8 ms⁻²
t - time taken  - t seconds
substituting values in the equation
h = 19.5 ms⁻¹ x t s - 1/2 x 9.8 ms⁻² x (t s)²
h = 19.5t - 4.9t²
7 0
3 years ago
Anyone know how to do this?
alexgriva [62]

Answer:

60.22in^2.

Step-by-step explanation:

First, find the area of the rectangle. 14.1x7=98.7.

Then, we need to find the area of the circle and subtract it from the area of the rectangle.

The area of the circle is pi*r^2. so, pi*3.5^2 is about 38.48. (The radius is half of the diameter, so the radius would be 3.5).

Since there are two halves of the circle, we can just subtract 38.48 from 98.7 so get the area of the shaded region. So, the area of the yellow area is 60.22in^2.

4 0
3 years ago
Read 2 more answers
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scZoUnD [109]
For the first question the answer is 1/13. then for the second it is 1/2 and for the third it is 3/10.
5 0
4 years ago
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Mrs. Thompson wants to buy centerpieces to use at a party. It will cost $49 to have the centerpieces delivered plus $0.89 per ce
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Answer:

Step-by-step explanation:

So part a is D because,You take the amount per centerpiece multiply it by the amount and add the shipping.

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3 0
3 years ago
PLZ TRANSLATE AND SOLVE:
taurus [48]
2(6+(x+3)) * (2-x) = 4 is what it looks like. twice meaning two of the following part,

then x needs increased by 3 before being added to 6

times (multiply)

the difference of 2 and x

all this = 4


4 0
3 years ago
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