Question

helpDeandra is doing her math homework. She completed the first 6 problems in 2 hours and the last 12 problems in 3 hours. Which best describes Deandra’s rate for completing her homework? A Deandra completed the first 6 problems at a rate of 6 problems per hour and the last 12 at a rate of 2 problems per hour. B Deandra completed the first 6 problems at a rate of 3 problems per hour and the last 12 at a rate of 4 problems per hour. C Deandra completed the first 6 problems at a rate of 2 problems per hour and the last 12 at a rate of 6 problems per hour. D Deandra completed the first 6 problems at a rate of 4 problems per hour and the last 12 at a rate of 3 problems per hour.

Answer 1

6 problems in 2 hours would be 3 problems for each of the 2 hours.
12 problems in 3 hours would be 4 problems each hour because 3 x 4 is 12.

So your answer should be
B. Deandra completed the first 6 problems at a rate of 3 problems per hour and the last 12 at a rate of 4 problems per hour.