A rational number is defined as a number that can be written
as a ratio of whole numbers. If it can't then it isn't.
Answer:
b. 0.45.
Step-by-step explanation:
The total possible outcome of a probability is 1
Given;
Probability that both lights will be red when she reaches them = 0.22
Probability that the first light will be red and the second light will not be red = 0.33
Probability that the second light will be red when she reaches it = x
These are all the possible outcomes, therefore
0.22 + 0.33 + x = 1
0.55 + x = 1
x = 1 - 0.55
x = 0.45
Option b
5 1/2 - 3 1/4
11/2 - 13/4
22/4 - 13/4 = 9/4
your answer is 2 1/4
hope this helps
Answer:
3/2 or 1 and 1/2 and it already has a common denominator.
Step-by-step explanation:
The Denominators are the same and 4-1=3 with the same denominator.
It would be: 6/10 & 12/20
