Answer:
Average speed = 5.264 km/hr
Step-by-step explanation:
Distance to highschool = 3.29 km
Average speed = Distance covered ÷ time taken
Distance covered = distance to highschool and back = 3.29 + 3.29 = 6.58 km
time taken = 3:30 pm to 5:15 pm = 5:15 - 3:30 = 1 hr 15 mins
15 minutes = 15/60 hours = 0.25 hours
∴ time taken in hours = 1 + 0.25 = 1.25 hours
∴ Average speed = 6.58 ÷ 1.25 = 5.264 km/hr
Answer: A) 18(1.15)x
Step-by-step explanation:
18 was the original cost, so the price will always be determined with this starting point. Sice there is an increasing value, that makes it 1.15 instead of .15. And it goes up by 15%, making it the coefficient.
If this is in khan put it as 54pi