The ratio of black bags to blue bags is 5 to 3. If there are a total of 15 blue bags, then how
many black bags are there?

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.

1/4x+5=3/4. i can't get access to the answer to this question! and, my request on "contact us" will not go