7 4/5 = 7 36/45
8 8/9 = 8 40/45
+----------
15 75/45
15 75/45 = 16 30/45
She will then have 3 rings
Answer:
t=0.4 sec
Step-by-step explanation:
Remember that
1 mile=5,280 feet
1 hour=3,600 seconds
Let
s -----> the speed in ft/sec
d ----> the distance in ft
t -----> the time in sec
s=d/t
Solve for t
t=d/s
step 1
Convert miles/hour to ft/sec
105.1 mi/h=105.1(5,280/3,600)=154.15 ft/sec
step 2
Find the time
t=d/s
we have
s=154.15 ft/sec
d=60.5 ft
substitute
t=60.5/154.15
t=0.4 sec
No of outcomes =8
P(odd)=1/2
P (<6)=5/8
Required probability of P(odd) and P (<6) = 1/2*5/8=5/16
