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nekit [7.7K]
2 years ago
7

Please solve pleaseeee

Mathematics
2 answers:
Step2247 [10]2 years ago
4 0

Step-by-step explanation:

7x + 3x + 90= 180

10x= 180-90

10x= 90

x= 90/10

x=10

ser-zykov [4K]2 years ago
4 0

The answer is x = 10

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The length of a rectangle is 2 meters more than its width. The area of the rectangle is 80 square meters. What is the length and
insens350 [35]

Answer:

Step-by-step explanation:

Formula

A = L * W

Givens

W = W

L = W + 2

Solution

Area = L*W

Area = (W+2)*W = 80            Remove the brackets.

Area = W^2 + 2W = 80         Subtract 80 from both sides.

Area = w^2+2W-80=80-80  Combine

Area = w^2 +2W-80 = 0        Factor.

Area = (w+10)(w - 8) = 0

W + 10 = 0 won't work

W = - 10 which isn't possible

W- 8 = 0

W = 8

L = 8 + 2 = 10

The answer looks like A

8 0
3 years ago
Jared has 2 dogs, spot and rover. spot weighs 75.25
SVEN [57.7K]
Where is the rest of the question?
7 0
3 years ago
Read 2 more answers
(4x+2)=102+44 solve for x
sergiy2304 [10]
<h3>Solution:</h3>
  • (4x + 2) = 102 + 44
  • or, 4x = 102 + 44 - 2
  • or, 4x = 144
  • or, x = 144 ÷ 4
  • or, x = 36
<h3>Answer:</h3>

x = 36

8 0
2 years ago
Read 2 more answers
Certain circle can be represented by the following equation.
kirill115 [55]

Answer:

Center of the circle is (-9, -7)

Radius of the circle = 5 units

Step-by-step explanation:

Given question is incomplete: here is the complete question.

Certain circle can be represented by the following equation. x^2+y^2+18x+14y+105=0.

What is the center of this circle ?

What is the radius of this circle ?

Since equation of the circle has been given by the equation,

x² + y² + 18x + 14y + 105 = 0

Now we will convert this equation to the standard form of the circle.

x² + 18x + y² + 14y = -105

[x² + 2(9)x] + [y² + 2(7)x] = -105

[x² + 2(9)x + 9²] + [y² + 2(7)y + 7²] = 9² + 7² - 105

(x + 9)² + (y + 7)² = 81 + 49 - 105

(x + 9)² + (y + 7)² = 25

(x + 9)² + (y + 7)² = 5²

By comparing this equation with the standard equation of the circle → (x - h)² + (y - k)² = r²

Center of the circle is (-9, -7) and radius of the circle is 5 units.

8 0
3 years ago
Read 2 more answers
a car rental service charges customers for the number of miles they travel rounded to the nearest whole mile George travels 40.8
Katarina [22]

Answer:

41 miles

Step-by-step explanation:

the company is saying they will round the number of miles, and charge you that number

when rounding 40.8, you round up to 41

1,2,3,4 rounds down to 0

5,6,7,8,9 rounds up to the next 0 up

6 0
3 years ago
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