Answer:X=21
Step-by-step explanation:
115+38+x = 174
153+ x= 174
X=174-153
X=21
The second child is about 19lbsif you want to round it otherwise it's 18 something lbs, so the first child is about... 57.
Answer:
2,776
Step-by-step explanation:
the name <u>pre</u>decessor means <u>before</u> hence the number just before 2777.
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
Answer is -6. Whatever number is closer to 0 when negative will always be bigger. Good luck!
