Question

Please help me here I know you can

Answer 1

Hi there!

Righto. We know that there is a distance of 200km, you traveled at an average speed of 100 km/h, and you traveled
`(3)/(5)` of the way at 80 km/h. Let us put this into the equation
`(80*3+2x)/(5)=100`. You traveled at 80 km/h for
`(3)/(5)` of the way and that is therefore 80*3. First, we can start by multiply both sides by 5 to get
`80*3+2x=500`. After subtracting 240 from both sides(80*3=240), we get
`2x=260`, which equals
`x=130`. Therefore, you traveled at 130 km/h for the each of the last
`(2)/(5)` of the trip.

-AwesomeRepublic :)