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WITCHER [35]
4 years ago
4

Find x if et = 3x+2 and em = 5x

Mathematics
1 answer:
scZoUnD [109]4 years ago
3 0

Answer:

x = 6

Step-by-step explanation:

The centroid (T) always splits the lines so one side is 2/3 and the second is 1/3 of the entire median line. This can also be written as 2x + x. That being said, ET isn't equal to EM, it's only equal to 2/3 of EM so that's what you have to write.

3x + 2 = 2/3 * 5x

3x + 2 = 10/3 x

*3 (3x+2) = *3(10/3x)

9x+6 = 10x

-9x      -9x

x = 6

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Y=2x-5.
I found the slope using the formula m=y2-y1/x2-x1.
m=-3-1/1-3=-4/-2=2.

I used (3,1) (only use one point, your choice) to find out b. 3=x, 1=y.
y=mx+b is the formula for slope intercept equations, so I plugged in the x and y.
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I used the information to get y=2x-5.
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3 years ago
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slava [35]

let's firstly convert the mixed fraction to improper fraction and then take it from there, keeping in mind that the whole is "x".

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Step-by-step explanation:

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