Question

Lisa solved 40 math fact problems in 2 1/2 minutes.

And then she solved 80 math fact problems in 5
minutes. Which best represents her unit rate?

Answer 1

her unit rate remained the same

Explanation:

Answer 2

Her unit rate remained the same

Explanation:

80 is twice as much as 40. 5 minutes is twice as long as 2 1/2 minutes. Her unit rate never changed.