There are r red marbles, b blue marbles and w white marbles in a bag. Write the ratio of the number of blue marbles to the total number of marbles in terms of r, b and w

There are 6 red marbles and 8 blue marbles in a bag.(a) What is the ratio of all marbles in the bag to blue marbles?(b) What is the ratio of red marbles to all marbles in the bag?

A large jar contains B blue jelly beans and R red jelly beans. A bag of 100 red and 100 blue jelly beans is added to the jar. What is the ratio of red to blue jelly beans in the jar?

Peter has 8 marbles.Ravi has 16 more marbles than Peter and 4 fewer marbles than Roslan.Fine the ratio of the number of marbles Peter has to the number of marbles Ravi has to the number of marbles Roslan has.Please leave your answer in the simplest form. : :

Each marble bag sold by Melissa's Marble Company contains 5 red marbles for every 7 blue marbles. If a bag has 25 red marbles, how many blue marbles does it contain?bluemarbles

John had some marbles. 30% of them were blue and 20% of the remainder were white. The rest were yellow. He gave away all the blue and yellow marbles to his friends. What percentage of the marbles did he give away?