It takes Bill 1/10 hour to walk a 1/6 mile park loop. What is Bill's unit rate, in miles per hour?

16.7 miles per hour.

Step-by-step explanation:

1/10 hour is equal to 6 minutes so it takes him 6 minutes to walk 1/6 mile. So he's walked 1 mile in 36 minutes.

Then we divide 1 mile by the time it took him to walk it to know how much distance he walks in 1 minute 1 mile/36=0.277777778

Then you multiply this by 60 because an hour has 60 minutes

0.277777778 x 60=16.7

This means he is walking at 16.7 mph

english, cause i can’t you

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!