Answer:
64 km/hr
Step-by-step explanation:
216 - 56 = 160 km on good road
216km / 48 km/hr = 4.5 hours total time
56 km / 28 km/hr = 2 hours on bad road
then 2.5 hours on good road ( for total 4.5 hrs)
160 km / 2.5 hr = 64 km/hr on the good road portion
Multiplying by 2 and then adding 10 145*2=290+10=300
300*2=600+10=610
610*2=1220 + 10=1230
x=2 y=10
x+y=12
Hey there!
So, I solved it for you but I couldn't type it here because they don't have everything I need :) . Please see the pictures below for the answer.
Best of luck!
If you need help in the future, just send me a message then I'll help you out :)
Garebear~
Answer:
A
Step-by-step explanation: