There is a 5 to 3 ratio of red marbles to green marbles in a bucket. How many red marbles can be in a bucket of 40 marbles?

A pie is made up of crust, apples, and sugar, and the rest is jelly. What is the ratio of crust to jelly?

There is a 2 to 3 ratio of dogs to cats in a park. How many cats are there if there are 12 dogs?

You have a bag filled with red and green apples. If there are 9 red apples and 12 green apples, what is the probability of choosing a red apple out of the bag?

A deck of cards has 52 cards. What is the probability of dealing a card with a face value of 4?

A TV show lasts 30 minutes, what fraction of the show is left after 12 minutes have passed?

In a solution, of the fluid is water, is wine, and is lemon juice. What is the ratio of lemon juice to water?

A bag contains red, orange, and yellow marbles only. The marbles occur in a ratio of 5 red marbles: 4 orange marbles: 1 yellow marble. If one-third of the red marbles, one-half of the orange marbles, and one-fourth of the yellow marbles are removed, then what fraction of the remaining marbles in the bag is red?

Marty drove 40 mi/hr for 3 hours, then 60 mi/hr for 1 hour, and finally 70 mi/hr for the last 2 hours. What was Marty's average speed?

If and , what is the ratio of to ?