305. Jackie enjoys exercise and plans to walk, jog
and cycle for a total of 60 minutes a day. Every
minute Jackie
jogs she uses
11 kilojoules of
energy. She walks
for twice as long as
she jogs and uses
5 kilojoules per
minute while
walking.
a)
If Jackie spends t minutes jogging what is her
total energy use jogging and walking?
Encou = it+ 2tx5
The rest of the 60 minutes Jackie cycles and
uses 8 kilojoules per minute of cycling.
b)
Form an equation in t showing the amount of
energy Jackie uses on her 60minute exercise.
t=10
Enegu- 2it 860-3E))
