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Alex777 [14]
3 years ago
11

What is the solution to the inequality below?

Mathematics
1 answer:
Marta_Voda [28]3 years ago
4 0
24...................................................................
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Flying with the wind, a plate went 251 km/h. Flying into the same wind, the plane only went 219 km/h. What is the speed of the w
Dennis_Churaev [7]

Answer: Option D, the actual speed of the wind is 16km/h.

Step-by-step explanation:

Let's define two quantities:

Sp = Speed of the plane, that we assume it is constant.

Sw = Speed of the wind, that we assume it is constant.

When the plane flies with the wind, the total speed will be

Sp + Sw = 251km/h.

When the plane flies against the wind, the total speed will be:

Sp - Sw = 219km/h.

Then we have two equations:

Sp + Sw = 251km/h

Sp - Sw =  219km/h.

We want to find the speed of the wind, so we should isolate the speed of the plane in one of the equations, let's isolate it in the second equation:

Sp = 219km/h + Sw.

Now we can replace this into the other equation:

Sp + Sw = 251km/h.

(219km/h + Sw) + Sw = 251km/h.

2*Sw + 219km/h = 251km/h

2*Sw = 251km/h - 219km/h = 32km/h

Sw = (32km/h)/2 = 16km/h.

This is really close to the option B, but is not equal, so the correct answer will be D, none of the above.

6 0
2 years ago
Help me please please please
Grace [21]

Answer:

2x²-2x

Step-by-step explanation:

To find the area of a rectangle, you multiply the sides together.

In this case:

x × 2x-2 = x(2x-2) = 2x²-2x

7 0
3 years ago
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How do you calculate 1/5
bonufazy [111]

Answer:

0.2

Step-by-step explanation:

I hope this helps you enough.

4 0
1 year ago
I NEED HELP PLSSS GEOMETRY
jek_recluse [69]

Answer:

Its the first one (top left option)

Step-by-step explanation:

ur in a rush so i wont explain, pls give me brainliest

5 0
2 years ago
............................................whats 10000000000000000000x1000000000000000000000000
koban [17]

Answer:

10,000,000,000,000,000,000,000,000,000,000,000,000,000,000

Step-by-step explanation:

10,000,000,000,000,000,000 x 1,000,000,000,000,000,000,000,000 =

10,000,000,000,000,000,000,000,000,000,000,000,000,000,000

3 0
2 years ago
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