Hello!
So there is a 5:8 ratio
That means that for every 5 lunch customers there are 8 dinner customers
You have to find how many sets of lunch customers come in
To find this you do
40 / 5 = 8
Since there were 8 sets of lunch customer to find the dinner customers you od
8 * 8 = 64
So there is an average of 64 dinner customers
To find the total you add these numbers together
64 + 40 = 104
The answer is 104
Hope this helps!
