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LekaFEV [45]
2 years ago
11

What is the solution to the equation 4(2-x)=5x-17

Mathematics
1 answer:
Travka [436]2 years ago
3 0

Answer:

x = 25/9 or 2.777777778

Step-by-step explanation:

4(2-x) = 5x - 17

8 - 4x = 5x - 17

<u>    +4x   +4x</u>

8 = 9x - 17

<u>+17      +17</u>

25 = 9x

25/9 = x

x = 2.777777778 or 25/9

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Answer:

x = 41

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Step-by-step explanation:

Systems of equations is,

-2x - 7y = -250 ------(1)

4x - y = 140 ------(2)

Equation (1) multiplied by 2 then added to equation (2)

 -4x -14y = -500

(+)   4x - y = 140  

         -15y = -360

            y =

           y = 24

by putting y = 24 in equation (2),

4x - 24 = 140

4x = 140 + 24

x =

x = 41

For x = 41 and y = 24 both the equations are true.

Equation (1),   -2(41) - 7(24) = -250  [True]

Equation (2),   4(41) - (24) = 140  [True]

Step-by-step explanation:

6 0
2 years ago
Use the information in the diagram to determine the height of the tree to the nearest foot.
algol13

Answer:

The correct option is A. The height of tree is 60 ft.

Step-by-step explanation:

From the given figure it is noticed that the building is creating a right angle triangle from a point and the tree divides the hypotenuse and base in two equal part.

According to midpoint theorem of triangle: In a triangle, if a line segment connecting the midpoints of two sides, then the line is parallel to third side. The length of line segment is half of the length of third side.

Using midpoint theorem of triangle, we can say that the length of tree is half of the building.

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Tree=\frac{1}{2}\times 120

Tree=60

Therefore correct option is A. The height of tree is 60 ft.

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3 years ago
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left = right

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3 years ago
Which function is shown in the graph below
Alchen [17]

Answer:

y=log1^x

Step-by-step explanation:

plug in one of the points for example (1,0)

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3 years ago
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