Question 910615
Yogurt is mixed with dessert "topping", and it is being called, "Ice Cream"?  The mixture will not result in ice cream.


Aside from the wrong naming and identifying of ingredients, your goal is to solve for quantities based on fractions of fat.


x for how much of the 85% fat ingredient
y for how much of the 95% fat ingredient
Units of measure is "ounces".
Want 20 ounces of 90% fat.


{{{(85x+95y)/20=90}}} and {{{x+y=20}}}


Without solving, one can judge the answer as 10 ounces of each.  The actual solution process should show that to be the answer.