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padilas [110]
3 years ago
5

What is the solution to the equation 2k-10/-7=8

Mathematics
2 answers:
Marizza181 [45]3 years ago
7 0
\frac{2k-10}{-7}=8 \\ - \frac{2}{7}k- \frac{10}{7}=8 \\ - \frac{2}{7}k-1.43=8 \\ +1.43\ \ \ \ \ \ +1.43 \\ - \frac{2}{7}k=9.43 \\ * -\frac{7}{2}\ \ \ \ * -\frac{7}{2} \\ \boxed{k=-33.005}
Rasek [7]3 years ago
6 0
\sf\dfrac{2k-10}{-7}=8

Multiply -7 to both sides:

\sf2k-10=-56 

Add 10 to both sides:

\sf2k=-46 

Divide 2 to both sides:

\sf~k=-23 
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Just ignore number 7 it’s 8 I need help on, it tried to attempt it myself but it wasn’t working for me
ArbitrLikvidat [17]

1 hm=100m

1.5hm=150 meters each tower is from each other.

500km(1000m/1km)=500,000 meters the wire covers.

500,000/150 = 3333.33 towers. Just because we want to be safe and have enough towers we can say we have 3334 towers in the span of 500,000 meters.

B)

1kV=1000V

500kV(1000V/1kV)= 500,000 V

There are 1.2 volts in a AA battery so we divide 500,000/1.2 = 416666.67 times larger

3 0
3 years ago
This object is made with five identical cubes. each cube edge if 4 centimeters long, What is the surface area of this object in
CaHeK987 [17]

Answer:

480 cm ^ 2

Step-by-step explanation:

To calculate the surface area of the figure, we must calculate the surface area of the cube, we know that they are identical, therefore, calculating the area of one is sufficient.

We have that the surface area of a cube is:

A = 6 * a ^ 2

where a is the edge, we know that if it is a cube all its sides are equal, in this case it is 4 centimeters, if we replace we have:

A = 6 * (4 ^ 2)

A = 96

96 square centimeters is the area of a cube, but since the area of the object would be the sum of the area of all the cubes, then:

AT = 96 * 5

AT = 480 cm ^ 2

The surface area of the object formed with the cubes is 480 cm ^ 2

3 0
3 years ago
If the points on a graph of a linear function are (-2,10 (0,4) (2,-2) and (4,8) what is the y-intercept
MatroZZZ [7]

Answer:

i think 5

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is the slope of (-4,6) and (2,-5)
Dominik [7]

Answer:

-11/6

Step-by-step explanation:

Slope can be found with this equation:

(y₁ - y₂) / (x₁ - x₂)

What this essentially tells us to do is to put one set of the x and y coordinates into x₁ and y₁, respectfully. Then, put the other set of x and y points as x₂ and y₂.

With this scenerio, we can substitute the given points into the formula.

(6 - (-5)) / (-4 - 2) =

(6 + 5 ) / (-6) =

11 / (-6) =

-11/6

The slope is  - 11/6

4 0
3 years ago
Read 2 more answers
(- 1, 2) and (9, - 3)
slava [35]

9/5

the distance is 9 over, and 5 up.

5 0
3 years ago
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