Answer:
1/20
Step-by-step explanation:
The only way it can equal 2 is if both spinners land on 1 because 1 + 1 = 2.
The probability of the 1st spinner landing on 1 is 1/4.
The Probability of the 2nd spinner landing on 1 is 1/5.
To find out the Probability of them landing together it would be 1/5 times 1/4 which equals 1/20.
Hello!
The first thing you want to do is add 13+5 which gives you 18. SO then you see how many times 18 goes into 360. Which gives you 20. So then you multiply 20 by 5 (because there are 5 business seats for every 13 and 18 went into 360 20 times, which gives you 100 business seats. Then you subtract 100 from 360 to see how many economy seats are left which gives you 260 economy seats. So there are 100 business seats and 260 economy seats.
I hope this helped!
I am, yours most sincerely,
SuperHelperThingy
When you're dividing by a negative number
Answer:
Zero
Step-by-step explanation:
The probability of the ball being red after first selection is = (r) ÷ (r+b)
The probability of the ball being blue after first selection is = (b) ÷ (r+b)
If the ball selected is red, the total number of balls after its returned together with m number of red balls is = r+b+m
The probability of the selection doesn't depend on the second selection, hence condition probability is zero.
However the probability of the second selection depends on the first selection.
7,3 and 10,6 put them together
