Answer:
x=-1, y=9. (-1, 9).
Step-by-step explanation:
6x-y=-15
x+2y=17
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y=6x-(-15)
y=6x+15
x+2(6x+15)=17
x+12x+30=17
13x=17-30
13x=-13
x=-13/13
x=-1
-1+2y=17
2y=17-(-1)
2y=17+1
2y=18
y=18/2
y=9
Answer: The mean of this binomial distribution is 53.36.
Step-by-step explanation:
We know that , the mean of this binomial distribution is given by :_
, where n = sample size or the number of possible trials .
p = probability of getting success in each trial.
We are given that , the probability of success in each of the 58 identical engine tests is p = 0.92.
i.e. n= 58
p=0.92
Then, the mean of this binomial distribution = 
Hence , the mean of this binomial distribution is 53.36.
The maximum amount of miles that can be driven is A) 220 miles.
Answer:
7x + 14y + 2
Step-by-step explanation:
(3x+8y+8)+(4x+6y-6)
3x + 8y + 8 + 4x + 6y - 6
3x + 4x + 8y + 6y + 8 - 6
7x + 14y + 2
Answer:
45 minutes
Step-by-step explanation:
First,
Multiply 15 by 3 to know the time.
15 x 3 = 45
Hope this helps!!