Question

At Wednesday's practice, McKenzie ran a

mile in 9 minutes. At Saturday's track meet,
she ran 2 miles in 19 minutes. On which day
did McKenzie run at a faster rate?

Answer 1

on wednesday (i think)

Explanation:

s=d/t

x=1/9

9/60=0.15

this is 6.6 mph

whereas,

x=2/19

19/60=0.316

2/0.316

this is 6.3 mph which is why she rans faster on Wednesday

Answer 2

Explanation:

so on wednesday she ran a mile in 9 minutes

on saturday, 2 miles in 19 minutes which is one mile in 9.5 minutes, you fine this by cross myliplication then solving for x so she ran faster on wednesday