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. Answers:
A) r/ (r + b + w)  B) b/ (r + b + w)  C) w / (r + b + w)  D) r / (r + b )  E) r / ( b + w)
Solution   The total number of marbles is   r + b + w   The total ratio of blue marbles to the total number of marbles is   r / (r + b + w)   r/ (r + b + w)NSWER IS r/ (r + b + w)
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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.