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Dima020 [189]
3 years ago
13

Explain the phrase conservation of energy and provide an example.

Mathematics
1 answer:
liubo4ka [24]3 years ago
3 0

Answer:

Conservation of energy, principle of physics according to which the energy of interacting bodies or particles in a closed system remains constant. ... For example, when a pendulum swings upward, kinetic energy is converted to potential energy.

Step-by-step explanation:

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Find the earnings for Phi, a phone pollster for accurate info. The company pays phone pollsters 14 cents for each telephone call
Gwar [14]
Phi earned $100.40. It says, "in data", meaning take the 910 and multiply it by .14 c.
7 0
3 years ago
I would like to have equal fish tanks for my fish. I have 12 angel fish and 24 sword fish and 30 guppies .How many tanks will I
velikii [3]

I would find the common factors between all of them, and settle with the factor 3.

If I have 3 tanks:

12/3 = 4

24/3 = 8

30/3 = 10

In each of the 3 tanks, there will be 4 angel fish, 8 sword fish, and 10 guppies.

I hope I helped :)

(I hope I didn't misunderstand the question, so if I did, I'm really sorry about that.)

7 0
3 years ago
I need help answering
Marizza181 [45]

Fill in the values and calculate:

1/4 * 6 + 3*7 = 6/4 + 21 = 22 1/2

4 0
3 years ago
You are wakeboarding on a river. You travel 2 miles downstream to a marina for supplies, and then you travel 3 miles upstream to
Zielflug [23.3K]

Let x represent the speed of of boat.

We have been given that the river current is 3 miles per hour.  

The speed of boat upstream will be x-3.

The speed of boat downstream would be x+3.

\text{Time}=\frac{\text{Distance}}{\text{Speed}}

We have been given that you travel 2 miles downstream to a marina for supplies, and then you travel 3 miles upstream to a dock.

We can represent this information in an equation as:

\text{Time}=\frac{2}{x+3}+\frac{3}{x-3}

Since the speed of the boat is 18 miles per hour, so we will substitute x=18 in above equation and solve for time.

\text{Time}=\frac{2}{18+3}+\frac{3}{18-3}

\text{Time}=\frac{2}{21}+\frac{3}{15}

\text{Time}=\frac{2}{21}+\frac{1}{5}

\text{Time}=\frac{2\cdot 5}{21\cdot 5}+\frac{1\cdot 21}{5\cdot 21}

\text{Time}=\frac{10}{105}+\frac{21}{105}

\text{Time}=\frac{31}{105}

\text{Time}=0.295238095

Since time is in hours, so let us convert our given time in minutes.

1 hour = 60 minutes.

\text{Time}=0.295238095\times 60\text{ minutes}

\text{Time}=17.7142857\text{ minutes}

Rounding to nearest tenth of minute.

\text{Time}\approx 17.7\text{ minutes}

Therefore, it will take approximately 17.7 minutes for the boat to take the trip.

3 0
3 years ago
36.8% of what number is 28.52?
laila [671]
To solve this problem we can use the rule of 3 and solve for x. Let's equate it as the following:

28.52/x=36.8/100

Why did I represent it like that?
In the first numerator we have the known quantity (28.52). In the second numerator we'll need the percentage that 28.52 represents (because the second fraction will represent percents). This will be 36.8%
The first denominator is x (the number we want to figure out). That number represents 100%. Hence the 100 as the second denominator.

To solve for x we need to do the following:
x=(28.52*100)/ 36.8
x=2852/36.8
x=77.5

Answer: 28.52 is 36.8% of 77.5

8 0
3 years ago
Read 2 more answers
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