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2 years ago

An airplane on autopilot took 9 hours to travel 6399 kilometers. What is the unit rate for kilometers per hour?

Mathematics

1 answer:

sukhopar [10]2 years ago

8 0

Answer:

6399/9=711 The answer to this question is 711.

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What is 7/6y-8=2<br> A 5 5/9<br> B -10 4/5<br> C 18<br> D 20

koban [17]

Answer: The answer is actually 8 4/7

Step-by-step explanation:

Because...

7/6y-8=2

Add the 8 to the other side

7/6y=10

You then have you divide 7/6y by 7/6, then do it to the other side giving you 60/7.

That gives you a mixed number of 8 4/7.

4 0

3 years ago

raketka [301]

$\displaystyle\\
k = \frac{P_1}{P_2} = \sqrt{ \frac{A_1}{A_2} }=\sqrt{\frac{18}{32}}=\sqrt{\frac{9\times2}{16\times2}}=\sqrt{\frac{9}{16}}=\frac{\sqrt{9}}{\sqrt{16}}= \boxed{\bf \frac{3}{4}}$

3 0

2 years ago

How do you find the surface area of this figure?

atroni [7]

Answer:

SA=158cm²

Step-by-step explanation:

To find surface area, you find the area for all the surfaces and add them together. Let's start with the red rectangular prism first.

The top has measurements of 5 and 2. The area of that is 10.

The bottom is the same so it's area is also 10 but we don't want to add it since it's not on the surface.

The side facing us has measurements of 4 and 2, the area is 8.

The side opposite to this is the same so it's area is also 8

Now the right face of this shape is 4 and 4 so 16.

The left face will have the same area. It'll also be 16.

The surface area of the red shape is 10+8+8+16+16= 58

Now the orange shape.

The side facing us is 5 and 3 so area=15

The side opposite to this will have the same area.= 15

The right face is also 5 and 3 so 5x3=15

The opposite face to this will also have an area of 15

Now the top face, it's 5 and 5 = 25. We have to subtract the area covered by the red shape. So 25 - 10 = 15

The bottom face's area will be 25.

The surface area of this shape will be : 15+15+15+15+25=100

Now add the areas of both shapes

58+100 = 158

SA=158cm²

Hope this helps :)

4 0

2 years ago

Help please!!!!!!!^3

riadik2000 [5.3K]

Answer:

Step-by-step explanation:

$-2[-6(-4+7)]\\\\=(-2)(-6)(3)\\\\=12(3)\\\\=36$

4 0

1 year ago

A bike rental company rented out 6 bikes in its first month. The number of bikes it rented tripled each month.

Alexeev081 [22]

Hi there!

The total number of bikes rented is 2,184

If you plug in the correct numbers into the formula

$a \dfrac{1- r^{n} }{1-r}$

Then you get

$6 \dfrac{1- 3^{6} }{1-3}$

And when the fraction is simplified it looks like this

$6 \dfrac{-728}{-2}$

Once this is in simplified form you take the 6 and put it over 1 like so

$\dfrac{6}{1} * \dfrac{-728}{-2}$

Then you find the prime factors of 6 and factor the -2 like so

$\dfrac{3*2}{1} * \dfrac{-728}{-1*2}$

Once this is done cancel out the 2

$\dfrac{3}{1} * \dfrac{-728}{-1}$

Then multiply -728 by 3

$\dfrac{-2184}{-1}$

Then divide to get 2184

Your friend, ASIAX

7 0

3 years ago

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An airplane on autopilot took 9 hours to travel 6399 kilometers. What is the unit rate for kilometers per​ hour?

An airplane on autopilot took 9 hours to travel 6399 kilometers. What is the unit rate for kilometers per hour?