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3 years ago

Given that J is between H and K. If JK=3x-1, HJ=2x+4, and HK=12, find x and JK.

Mathematics

2 answers:

cricket20 [7]3 years ago

5 0

Answer:

X=7

Step-by-step explanation:

HJ + JK = HK

3(X + 2) +(3X - 4) = 44

3X + 6 + 3X - 4 = 44

6X + 2 = 44

6X = 42

X = 7

Naddika [18.5K]3 years ago

5 0

Answer:

x=1.8 JK=4.4

Step-by-step explanation:

JK+HJ=HK

3x-1+2x+4=12

5x+3=12

5x=9

x=1.8

JK=3x-1

JK=3(1.8)-1

JK=5.4-1

JK=4.4

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