Answer:
CU = 117
Explanation:
Proportion
WC/WD = WU/WV
Givens
- WC = 26
- WD = 20
- WU = 36x - 1
- WV = 110
Solution
26/20 = (36x - 1) / 110 Multiply both sides by 110
26 *110/20 = (36x - 1) * 110/110 Simplify
2860/20 = (36x - 1) Remove the brackets
143 = 36x - 1 Add 1 to both sides
143+1 = 36x - 1 + 1
144 = 36x Divide by 36 both sides
144/36 = 36x/36
4 = x
=================
WU = 36*x - 1
WU = 36*4 - 1
WU = 144 - 1
WU = 143
CU = WU - WC
CU = 143 - 26
CU = 117