Gus is making a Chilli recipe that calls 3 parts beans to five parts ground beef. if he is using 8 cups of ground beef for a big family dinner, how many cups of beans will gus need?

First you need to find the percent equivalent to that of the ratio. The ratio is 3:5. From there you would take the 3, and divide it by 5. 3/5=0.6. Apply that to the information that you are given: 8 (0.6) = 4.8.