I will give you my solution down here
3x-x=2+4
2x=6
x=3
Answer:
The answer is A. k = 4.25.
Step-by-step explanation:
To find proportionality, solve for 8.5 divided by 2 and 17 divided by 4.
Both of those answers are 4.25, so that would be the final answer.
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Answer:
0.2839 = 28.93%
Step-by-step explanation:
In order to find find the probability that one car chosen at random will have less than 68.5 tons of coal, we have to find z
Le x be tons of coal in a car
Z = (x – mean)/standard deviation
Z = (x – μ)/ σ
P (x<68.5) = P(z < (68.5-69)/0.9)
P (x<68.5) = P(z < -0.5555)
Then we use the z table to find the area under the curve.
P (x<68.5) = 0.2893
9x3x8/92=2.347 and that rounded =2.35.
