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enyata [817]
3 years ago
12

Solve x+8y/4=9y for x

Mathematics
2 answers:
nikklg [1K]3 years ago
6 0

Answer:

x = 7y

Step-by-step explanation:

x+8y/4=9y

Multiply each side by 4 to get rid of the fractions

4(x+8y/4)=9y*4

Distribute

4x +8y = 36y

Subtract 8y from each side

4x +8y-8y = 36y-8y

4x = 28y

Divide each side by 4

4x/4 = 28y/4

x = 7y

Eva8 [605]3 years ago
3 0

x+8y/4=9y

Multiply each side by 4

4(x+8y/4)=9y*4

=>4x +8y = 36y

Subtract 8y from each side

=>4x +8y-8y = 36y-8y

=4x = 28y

Divide each side by 4

=>4x/4 = 28y/4

x = 7y

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14. A satellite orbits 22, 300 miles above the equator. It completes one revolution in 24 hours. Assume that the radius of the E
quester [9]

Answer:

Displacement = 0 mi

Distance = 164,996.45 mi

Step-by-step explanation:

In this case, the displacement will be zero because the satellite goes back to its starting point after one day. If there is no distance traveled between the starting point and the ending point, then the Displacement will be zero.

When it comes to the distance, we will need to calculate the perimeter of the circle the satellite describes when making one whole turn around the earth.

The perimeter of a circle is given by the equation:

p=2\pi r

so we need to start by finding what the radius of the circle is. This radius if found by adding the radius of the earth and the distance above the equation the satellite is located at, so we get that:

r=r_{earth}+h

where h is the height of the satellite, so the radius of the circle is:

r=22,300mi + 3,960 mi

so

r=26,260 mi

so now we can use the perimeter equation to get:

p=2\pi r

p=2\pi (26,260)

So the distance traveled by the satellite in one day will be:

P=164,996.45 mi.

7 0
2 years ago
2.192 closer. To 0 ,1,2,3
slega [8]
Closer to 2. If you round it, because the number after the 2 is less than 5 you round it down so it's closer to 2
6 0
2 years ago
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Find an equation for the nth term of the arithmetic sequence.<br> -20, -16, -12, -8, ...
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5 0
3 years ago
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A square has an area of 27.8 cm2.
Liono4ka [1.6K]
5.2 good luck and have a great day:)
8 0
2 years ago
How do I round 47,283 to the nearest 100,000
rosijanka [135]

The answer is zero.

Explanation:

The 4 is in the ten-thousands place.

Write the number 47,283 with an additional zero in the 100,000 place.

047,283

To round to the nearest 100,000, all digits to the right of the 100,000 place become zero. That means that the digits 47283 all become zero. Since 4 is less than 5, the digit to its left is not raised by 1, so the 100,000 place digit remains zero, and you end up with 000,000, which is simply 0.

Answer: 0

7 0
3 years ago
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