I don’t know about Question One, but I can do the other two.
Question Two:
Since the first one is 2 for 3000, you divide 3000/2 and get 1500. If you do the same for 4500/3 and 7500/5, you will find that 1500 is the answer to all of them. Each panel is 1500$. If you multiple 1500$ by 9, you will get 13,500$
Question 3:
To find each, you need to divide the total price by the number of hours. The first company is 128/5, making it 25.60$ per hour. The second company is 181/6, making it 30.17$ per hour. Finally, the third company is 195/8, making it 24.38$ per hour. The best deal would be the final one because it costs the least per hour.
Answer:
x = 11m
Step-by-step explanation:
The longest side is the bottom (15m). If you look at the sides you can see that the side that measures 4m is parallel with the side that measures 15m. Anytime two sides overlap to make x, we can simplify by subtracting or adding. All we need to do is subtract to find the length of x.
15 - 4 = 11m
Answer:4/a^2
Step-by-step explanation:
Complete question :
Of 50 employees of a store located in downtown Boston, 18 people take the subway to work, 12 take the bus, and 7 people take both the subway and the bus. How many employees (a) Take the subway or the bus to work? employees (b) Take only the bus to work? employees (c) Take either the bus or the subway to work (but not both)? employees (d) Get to work by some other means? employees
Answer:
23 ; 5 ; 16 ; 13
Step-by-step explanation:
Given that:
Subway (s) = 18
Bus (b) = 12
Subway and bus = 7
a) Take the subway or the bus to work?
Number of subway + number of bus - (subway and bus)
18 + 12 - 7 = 23
(b) Take only the bus to work?
Number of bus - (subway and bus)
12 - 7 = 5 employees
(c) Take either the bus or the subway to work (but not both)?
Number of bus - (subway and bus) + Number of bus - (subway and bus)
(12 - 7) + (18 - 7) = 5 + 11 = 16 employees
(d) Get to work by some other means?
Total employees - (subway + bus + subway and bus)
50 - (18 + 12 + 7)
50 - 37
= 13 employees
Answer:
0.5328 = 53.28% probability that the length of hatching times is between 15 and 18 days.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation , the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 16 days and standard deviation of 2 days.
This means that
Probability that the length of hatching times is between 15 and 18 days.
This is the p-value of Z when X = 18 subtracted by the p-value of Z when X = 15. So
X = 18
has a p-value of 0.8413
X = 15
has a p-value of 0.3085
0.8413 - 0.3085 = 0.5328
0.5328 = 53.28% probability that the length of hatching times is between 15 and 18 days.