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

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

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right