Answer: The combined amount of raisin and oatmeal cookies sold=80.
Step-by-step explanation:
Let x be the combined amount of raisin and oatmeal cookies sold
Given:-
Amount of raisin cookies sold=72
The ratio of raisin cookies sold to oatmeal cookies sold = 9:1
Thus Amount of raisin cookies sold = [tex]\frac{9}{1+9}\times\ x=72\\\\\Rightarrow\frac{9}{10}\times\ x=72\\\\\Rightarrow\ x=72\times\frac{10}{9}\\\\\Rightarrow\ x=80[/tex]
Therefore, the combined amount of raisin and oatmeal cookies sold=80.
