Answer:
He spent $24 dollars
Step-by-step explanation:
Each of the piecrusts had 2 cup of flour he has 5 pies so all pies altogether equally 10 cups so he buys 2 bags for $24 dollars
The answer is C If I'm correct
Answer:
- 4 bread loafs, 1 pound of meat, 3 pounds of cheese
Step-by-step explanation:
Let loaf of bread be b, meat be m and cheese be c
<u>Based on the given, we have following equations:</u>
- b + m + c = 8
- c = 3m
- b + 4m + 3c = 17
<u>Subtract the first equation from the third and substitute c with m:</u>
- b + 4m + 3c - (b + m + c) = 17 - 8
- 3m + 2c = 9
- 3m + 2(3m) = 9
- 9m = 9
- m = 1
<u>Then</u>
- c = 3*1 = 3
- b = 8 - (1 + 3) = 4
Unsaved?
Anyway, 60,000 is one standard deviation above the mean. By the 68-95-99.7 rule 68% of the probability is between -1 and +1 standard deviations, so 34% between 0 and 1 sigma so 50%-34%=16% above one sigma.
Answer: 16%
Answer:
31.92%
Step-by-step explanation:
We are given;
Population mean; μ = $3.12
Sample mean; x¯ = $3.16
Sample size; n = 10
Standard deviation; σ = $0.27
Z-score formula is; z = (x¯ - μ)/(σ/√n)
z = (3.16 - 3.12)/(0.27/√10)
z = 0.04/(0.08538)
z ≈ 0.47
Now, the percent of other sample means, based on 10 gas stations, that would be greater than the one observed is;
P(x¯ > 3.12) = 1 - P(z < 0.47)
From z-table attached P(z < 0.47) = 0.68082
Thus;
P(z > 0.47) = 1 - 0.68082
P(z > 0.47) ≈ 0.3192
This expressed in percentage is 31.92%
