Respuesta :
#1
Jill and Scott both moves for 30 minutes
now if Jill cover 5 km distance and Scott cover 10 km distance
now we know that the formula of speed is given as
[tex]speed = \frac{distance}{time}[/tex]
now we will have
speed of Jill
[tex]v = \frac{5}{0.5} = 10 km/h[/tex]
speed of Scott
[tex]v = \frac{10}{0.5} = 20 km/h[/tex]
so correct answer here is
Scott had the faster speed since he rode at 20 k/h while Jill only traveled 10 km/h.
#2
distance travelled by each car is given as
[tex]d = 400 miles[/tex]
now here it is given that
time taken by green car
[tex]t_1 = 10 hours[/tex]
time taken by yellow car
[tex]t_2 = 8 hours[/tex]
now we can find the speed of two cars
[tex]speed = \frac{distance}{time}[/tex]
speed of green car
[tex]v = \frac{400}{10} = 40 mph[/tex]
speed of yellow car
[tex]v = \frac{400}{8} = 50 mph[/tex]
so correct answer will be
The yellow car was faster. Yellow traveled at a speed of 50 mph while green was traveling at an average of 40 mph.
1.Scott had the faster speed since he rode at 20 k/h while Jill only traveled 10 km/h.
2.The yellow car was faster. Yellow traveled at a speed of 50 mph while green was traveling at an average of 40 mph.
u just need to divide time and distance for their speed