Respuesta :

xxxtenation

Answer:

J=44.375, K=88.75, L=98.75, and M=128.125

Step-by-step explanation:

J%2BK% 2BL% 2BM=360 Start with the given equation

x%2B2x%2B2x%2B10%2B3x-5=360 Plug in J=x, K=2x, L=2x%2B10,and M=3x-5

8x%2B5=360 Combine like terms on the left side

8x=360-5Subtract 5 from both sides

8x=355 Combine like terms on the right side

x=%28355%29%2F%288%29 Divide both sides by 8 to isolate x

x=355%2F8 Reduce

Since x=355%2F8 (which is x=44.375 in decimal form), our first angle is J=44.375

Since x=44.375, we can plug this into K=2x to get

K=2%2844.375%29=88.75

 

So our second angle is K=88.75

Since x=44.375, we can plug this into L=2x%2B10 to get

L=2%2844.375%29%2B10=88.75%2B10=98.75

So our third angle is L=98.75

Since x=44.375, we can plug this into M=3x-5 to get

M=3%2844.375%29-5=133.125-5=128.125

So our fourth angle is M=128.125

netlarue98

Answer:

151°

Step-by-step explanation:

20x + 9 = 14x + 15 Subtract 14x from both sides, then subtract 9 from both sides.

6x = 6 Divide both sides by 6.

x = 1 Substitute 1 for x

20(1) + 9 = 14(1) + 15 Simplify.

29° = 29° Subtract 29° from 180°

180° - 29° = 151°

∠K is 151°  (and∠ L is also 151° but they didn't ask for that.)

I'll take a brainliest, please and thank you.

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