Question

EMERGENCY!!! (WILL GIVE BRAINLIEST)

Answer 1

He walked 5 miles.

$5x+60y=35$
$x+y=1.5$

Solutions (via elimination or substitution) are:
$x=1$
$y=.5$

x is the number of hours he spent walking, and 5x is the number of miles he walked. $5x=5(1)=5$ . He walked for 5 miles. 

y is the number of hours he spent on the bus, and 60y is the number of miles he rode on the bus.  $60y=60(.5)=30$ . He rode the bus for 30 miles.