Respuesta :
Answer: 3 hours
Look below
0
25
50
75
100 (other sister starts) 50
125. 100
150. 150
Answer:
After 4 hours Liz will catch up to Candice.
Step-by-step explanation:
Let Liz will catch up Candice after t hours.
Liz is driving with a speed of 50 miles per hour.
So distance covered by Liz in t hours = Speed × Time
= 50t miles
Time taken by Candice to cover the same distance will be = (t + 4) hours
(Candice has started 4 hours before her sister Liz)
Since Candice is driving with a speed of 25 miles per hour so distance covered in (t + 4) hours = 25(t + 4) miles
Distances covered by Candice and her sister Liz will be same when Liz Catches up Candice.
Therefore, 50t = 25(t + 4)
50t = 25t + 100
50t - 25t = 100
25t = 100
t = [tex]\frac{100}{25}=4[/tex] hours
After 4 hours Liz will catch up Candice.
