Question

Rachel took a total of 21 quizzes over the course of 3 weeks. After attending 10 weeks of

school this quarter, how many quizzes will Rachel have taken in total? Solve using unit rates.

Answer 1

70

Explanation:

If 3 weeks, 21 quizzes was done

If 10 week, how many quizzes was done

So technically this is what the question is about

So let's count in 1 week, how many quizzes were done, to do that, just divide

21/3

= 7

Therefore we can take it as, in one week, 7 quizzes will be done

Therefore in 10 weeks

= 7 x 10

= 70