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UNO [17]
3 years ago
10

Karen makes 9 dollars for each hour of work. Write an equation to represent her total pay p after working hours.

Mathematics
1 answer:
Makovka662 [10]3 years ago
5 0
Let the number of hours she work be n
So the equation will be
P = 9n
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Flying against the wind, an airplane travels 4000 kilometers in 5 hours. Flying with the wind, the same plane travels 5040 kilom
andriy [413]

Answer:the plane in still air is 904 km/h

the rate of the wind is 104 km/h

Step-by-step explanation:

Let x represent the rate or speed of the plane in still air.

Let y represent the rate or speed of the wind.

Flying against the wind, an airplane travels 4000 kilometers in 5 hours. This means that the total speed of the airplane would be (x - y) km/h

Distance = speed × time

Therefore

4000 = 5(x - y)

4000 = 5x - 5y - - - - - - - - -1

Flying with the wind, the same plane travels 5040 kilometers in 4 hours. This means that the total speed of the airplane would be (x + y) km/h. Therefore,

5040 = 4(x + y)

5040 = 4x + 4y - - - - - - - - - 2

Multiplying equation 1 by 4 and equation 2 by 5, it becomes

16000 = 20x - 20y

20160 = 20x + 20y

Subtracting, it becomes

- 4160 = - 40y

y = - 4160/-40

y = 104

Substituting y = 104 into equation 1, it becomes

4000 = 5x - 5 × 104

4000 = 5x - 520

5x = 4000 + 520

5x = 4520

x = 4520/5 = 904

7 0
3 years ago
Please help mee i need to complete this by 1;30!!
Anarel [89]

Answer:

The diameter of that circle is 8, because the radius is 4.

Step-by-step explanation:

Have a nice a and the time by me is 10:23 pm right now.

I probably need to sleep.

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4 0
3 years ago
0<br> 류<br> In<br> +<br> 0<br> 4<br> 1<br> 6<br> 1<br> Which fraction is equal to<br> 좋
Diano4ka-milaya [45]

Answer:

B = 6/8

Step-by-step explanation:

3 x 2 = 6

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(Equivalent fraction)

5 0
2 years ago
Please help don't guess
12345 [234]

So, just divide:

52.50 / 6 = 8.75

This means that she earns $8.75 an hour.

If this is her hourly salary, then multiply 8.75 x 11

8.75 x 11 = 96.25

So, if Paula works for 11 hours,  she will earn $96.25!


3 0
3 years ago
Read 2 more answers
Helpp noww pleasee!! 30 pointss
masha68 [24]

Answer:

729

Step-by-step explanation:

5 0
2 years ago
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