First, let x = number of oatmeal bars that Liam bakes
The expression should look like this:
(x + 20) + x = 108
Now, solve.
x + 20 + x = 108
2x + 20 = 108 Β Β Simplify the expression by making x + x = 2x.
Β Β Β - 20 Β Β Β - 20 Β Subtract 20 to isolate x.
2x Β Β Β Β = 88
--- Β Β Β Β Β Β --- Β Divide them by two to isolate the variable x.
2 Β Β Β Β Β Β Β 2
x Β Β Β Β Β = 44 Β Β So, Liam baked 44 oatmeal bars.
Now, to find how many bars Hamsa baked, you have to do 44 + 20, because she baked 20 more than Liam. So, Hamsa baked 64 oatmeal cookies.
The ratio is now 64:44, which is 16:11 when simplified.Β
Hope I helped!
