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Free_Kalibri [48]
3 years ago
15

Twice the difference of a number and 2 equals 5

Mathematics
2 answers:
ololo11 [35]3 years ago
6 0

9514 1404 393

Answer:

  2(x -2) = 5

Step-by-step explanation:

If x represents the number, then the difference of the number and 2 is ...

  x -2

Twice the difference is ...

  2(x -2)

"equals 5" means that product is equal to 5. The appropriate equation is ...

  2(x -2) = 5

_____

<em>In case you want a solution ...</em>

Dividing by 2, we get ...

  x -2 = 5/2

Adding 2 gives the value of the number:

  x = 2 +5/2 = 9/2

  x = 4 1/2

The number is 4 1/2.

Novosadov [1.4K]3 years ago
4 0
2-2x=5

When something says twice a number it’s always going to be multiplied by 2 and “a number will always be a variable
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The perimeter of a rectangular field is 328 yards. If the length of the field is 89 yards, what is its width?
miv72 [106K]

<u>Set up an equation based on the information given</u>

89 + 89 + x + x = 328

<u>Combine like terms</u>

89 + 89 = 178

x + x = 2x

2x + 178 = 328

<u>Solve</u>

2x + 178 = 328

328 - 178 = 150

2x = 150

x = 75

Answer

The width of the rectangular field is 75 yards.

7 0
3 years ago
A ball is launched into the sky at 54.4 feet per second from a 268.8 meter tall building. The equation for the ball’s height, h,
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Answer:

7.41

Step-by-step explanation:

Vertical component:

S = 268.8

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V =?

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T=?

S = ut + 0.5at^2. u = 0

268.8 = 0.5x9. 8xt^2

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5 0
3 years ago
Read 2 more answers
The riverside geyser in Yellowstone erupts about every 6.25 h. When the geyser erupts, the water has an initial upward velocity
Aleonysh [2.5K]

Answer:

Correct answer:  Hmax = 22.11 m

Step-by-step explanation:

The subject of this problem is a vertical shot upwards, to which the following formula applies:

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g = 10 m/s²

H - final height

Given:

V₀ = 69 ft/s = 21.03 m/s

V = 0 m/s

Hmax = ?

V₀² = 2 · g · Hmax  ⇒ Hmax = V₀² / 2 · g

Hmax = 21.03² / 2 · 10 = 442.26 / 20 = 22.11 m

Hmax = 22.11 m

God is with you!!!

6 0
2 years ago
How long will it take a seal swimming at a speed of 8 mph to travel 52 miles?
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Answer:

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Step-by-step explanation:

52 divided by 6 = 6.5

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What fraction of the dogs shown in
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2/14 just add the numerators and denomentators
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