While completing the race, Ned spent 63 min walking if the ratio of time walking to jogging was 9:1, how many minutes did he spend completing the race?
Let
x-----> time spent walking
y -----> tiime spent jogging
we have
x/y=9/1
x=9y -----> equation A
we have
x=63 min
substitute in the equation A
63=9y
solve for y
y=7 minutes
therefore
teh answer is