Question

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

Answer 1

x=1.8 JK=4.4

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