Question

I just need help with this one problem

Answer 1

Age of Nicole x= 24 years

Age of Donald = y = 48 years

Explanation:

Suppose x represents Age of Nicole in years and y represents age of Donald in years

Sum of their ages is 72, therefore

`x+y=72` -------------- (1)

Nicole is half as old as Donald

`x= (y)/(2)` ------------------ (2)

Substitute x=y/2 in equation (1)

`(y)/(2) +y = 72 \\3y = 2(72) \\y = (144)/(3) \\y= 48 \ years`

Now put y=48 in equation (2)

`x =(48)/(2) \\x=24`

Answer 2

Nicole is 36 years old