Step-by-step explanation:
change the unit
50 km per 1 hour
50 km/h = 50,000 m/ 3600 s = 13.8 m/s
the lorry speed is 13.5 m/s or 0.3 m slower than the limit
500e^0.0675t=1000
e^0.0657t=1000/500
e^0.0657t=2
take natural log of both side
lne^0.0657t=ln2
0.0657t=ln2
0.0657t=0.69314718056
t=0.69314718056/0.0657
t=10.55018539665
Answer:
open circle
answer below
Answer: 18 quarts for Part a
9 gallons for part b
