Question

in a bag of red and yellow cookies the ratio of red cookies to Yellow cookies is 4 :5 if the bag contains 80 yellow cookies how many cookies are there ​

Answer 1

144 total cookies

Explanation:

First, set up a proportion to find out how many red cookies there are. 4 over 5 is equal to x over 80. Cross-multiply and you will get 64 red cookies. This question is asking how many total cookies there are, so you would add the red and yellow cookies together. 64 plus 80 is 144 total cookies.