(3z−6)/(7−2z) = 1.2/3.2 Please help

Step-by-step explanation:

Given the equation (3z−6)/(7−2z) = 1.2/3.2

To get z, we need to cross multiply first

3.2 (3z-6) = 1.2(7-2z)

open the parenthesis

9.6z-19.2 = 8.4 - 2.4z

collect like terms

9.6z + 2.4z = 8.4 + 19.2

12z = 27.6

z = 27.6/12

z = 2.3

Hence the value of z is 2.3

3/5

Step-by-step explanation:

We calculate the value of cos for an angle by dividing the adjacent angle to hypotenuse so the option with 3/5 (simplified fraction of 18/30) is the correct answer.