Answer:
speed = distance × time
speed= 13 × 0.48
speed = 6.24 m/s
Step-by-step explanation:
(5.2+3.1)+7.4=5.2+(3.1+7.4)
(8.3)+7.4=5.2+(10.5)
15.7=15.7
hence,L.H.S =R.H.S PROVED
3x+1