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Marysya12 [62]
3 years ago
6

How do you solve this 2x +5 - 7x = 15

Mathematics
1 answer:
Serga [27]3 years ago
7 0
1. combine like terms (2x and -7x) to create -5x
2. subtract 5 from each side to create: -5x=10
3. divide both sides by -5
4. x=-2
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Out of 18 people surveyed at the mall, 4 have a motorcycle. Based on these results of the 270 people at the mall, how many have
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£250 in the ratio 4 to 1
Andrej [43]
In the event that you are asking to devide parts, we will use the equation   

·X+X²=Y

We Plug in our parts

·4x+1x=5x(Y)

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4 0
3 years ago
The length of a rectangle is six times its width. If the area of the rectangle is 384^2, find its perimeter.
Leno4ka [110]

Answer:

Perimeter, P = 112 meters

Step-by-step explanation:

  • Let the length of the rectangle be L.
  • Let the width of the rectangle be W.

Translating the word problem into an algebraic expression, we have;

L = 6W  ...... equation 1

<u>Given the following data;</u>

  • Area of rectangle = 384 m²

To find the perimeter of the rectangle;

First of all, we would determine the dimensions of the rectangle using its area.

Mathematically, the area of a rectangle is given by the formula;

Area of rectangle = LW  ..... equation 2

Substituting eqn 1 into eqn 2, we have;

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384 = 6W²

Dividing both sides by 6, we have;

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Taking the square root of both sides, we have;

W = √64

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Next, we would find the length;

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L = 6 * 8

Length, L = 48 meters

Lastly, we would determine the perimeter of the rectangle using the above dimensions;

Mathematically, the perimeter of a rectangle is given by the formula;

Perimeter = 2(L + W)

Substituting the values into the formula, we have;

Perimeter, P = 2(48 + 8)

Perimeter, P = 2(56)

<em>Perimeter, P = 112 meters</em>

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