Step-by-step explanation:
I hope u are asking for average speed
average speed = total distance/total time
= 225/7.5
= 30 km/h or 30 km per hour
Answer:
Click on the screenshot, I labeled the parts
Hope this helps :))
y = -8/9
2 ×(7) - 9 y = 22
14 - 9y = 22
9 y = -8
