Selby walked for a while at 4mph and then jogged the rest of the way at 8mph. if she covered 56 miles in 10 hrs how far did she walk and how far did she jog?

answer:

6 hrs walking and 4 hrs jogging

step-by-step explanation:

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10

idn

step-by-step explanation: