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Ede4ka [16]
3 years ago
8

Can someone substitute the problem in the picture? Please

Mathematics
2 answers:
Naddik [55]3 years ago
7 0
If you solve by substitution , you would get and the equation -3x-2(5x-7)=12 which if you solve becomes a -3x-10x+14=12
You than want to combine like terms , so you combine -3x and -10x and bring the other problem down.
-13x+14=12
You subtract the 14 from itself and the 12 to leave -13 with its variable alone.
Now you should have -13x=-2
You divide both sides by -13 and you’ll get x=2/13
Next step is you plug back this answer to the y=5x-7
And you’ll get y= -81/13
Lelechka [254]3 years ago
4 0

Next time, write down the problem.

y = 5x - 7 -3x - 2y = -12

Creative box:

(5x - 7) - (3x - 2y) = -12

5x - 3x = 2x

(2x - 7) - (2y)

y = -12

2 x -12 = -24

(2x - 7)  (-24) = answer (i'm not sure if its right, because I don't know if that is how the answer was supposed to be written)

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Help Please<br> Find The Surface Area Of The Prism
snow_lady [41]

Answer:

360 cm^2

Step-by-step explanation:

Find the area of each face of the triangular prism.

Imagine the triangular prism as its net, it is composed with 2 triangular faces (these are tye bases of the prism) and 3 rectangular faces.

Areas of the 2 triangular bases (they are similar triangles):

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Area of another rectangular face:

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8 0
2 years ago
Which figure best demonstrates the setup for the box method of finding the area of a triangle
Ivanshal [37]
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To be able to fill in this formula, we need to have a base and a height. We can't easily find a triangle with given base and height, so we must look for another option.

We can also take the area of a square (length × width) and then divide the answer by 2. This is possible when we take the third setup. Hence the third answer is correct.
4 0
3 years ago
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knowing the values of h, k, and r we can substitute them into the formula

knowing the

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