1. 6 : 13
2. 2 : 13
3. 5 : 13
4. 13 : 6
5. 11 : 13
6. 5 : 12
7. 4 : 12
8. 12 : 4
Hope this helps.
Answer:

Step-by-step explanation:
Distance for one way = 14 miles
The boat goes an average speed of 20 mph
The train goes 10 mph faster than the boat.
Speed of train = 20+10 = 30 kmph
Abdul takes the train into the park and the boat on his way back.
Time taken for going into park by train = 
= 
Time taken for going back by boat = 
= 
So, total time = 
Hence the round trip take 
Answer:
1 / 16
Step-by-step explanation:
Number of options = 4
Number of correct answers = 1
Number points gained for a correct answer = 1
Number of points lost for an incorrect answer = 1/4 = 0.25
Probability of choosing a correct option = 1/4
Probability of choosing an incorrect option = 3/4
x ____ 1 ______ - 1/4
P(x) __ 1/4 ______ 3/4
Expected gain or loss :
E(x) = Σx*p(x)
E(x) = (1 * 1/4) + (-1/4 * 3/4)
E(x) = 1/4 - 3/16
E(x) = (4 - 3) / 16
E(x) = 1 /16
A gain of 1/16
Answer:
y = 3 + 2x
Step-by-step explanation:
Let y = Total number of food items
Let x = Number of guests
y = 3 + 2x
Example:
If there are 14 guests, we have:
y = 3 + 2(14)
y = 3 + 28
y = 31
So the equation gives us a total number of 31 food items from both you and the guests.