I hope this helps you
distance=speed×time
first cars time t
second cars time t+3
same distance
distance=55.t
distance=40. (t+3)
55t=40 (t+3)
55t-40t=120
15t=120
t=8
t+3=11
Answer:
The probability that exactly one switch is good is

Step-by-step explanation:
The probability that a switch is defective is:

The probability that a switch is not defective is

Therefore, if two switches are selected, the probability that exactly 1 is good is:



Answer:
Find the value of x the value is x=4
3x4=12
12-5=7
Step-by-step explanation:
Answer:p=7
Step-by-step explanation:because 4 x 7 =28
Answer:
0.71
Step-by-step explanation:
9.23 divided by 13 easy