Don L. answered 03/25/19
Fifteen years teaching and tutoring basic math skills and algebra
HI Linda, since there are no expressions listed, here is how I would answer the question. Use a table like this:
Let x represent the amount of raisins needed.
Product Amount
-----------------------------
Raisins x
Nuts 20 - x
Mixture 20
Or you could swap the amount of raisins and nuts and get the same results
Either way, you have to have a sum that adds up to 20.
Questions?