Origin (0,0), x-axis left to right, y-axis up and down (vertical)
85 x 45/60 = 63.75 km
118 x 16/60 = 31.47 km
43 x 13/60 = 9.32 km
63.75 + 31.47 + 9.32 = 104.54 km
45 + 16 + 19 + 13 = 93 min = 1.55 hours
104.54 ÷ 1.55 = 67.45 km/h
-6,-7, and -8, this is more of a guess and check question
Answer:
3
Step-by-step explanation:
Using the work rate formula (1/Holly's time) + (1/Jasper's time which is twice of Holly's time) = 1/ Total time taken by both