Answer:idk
Step-by-step explanation:
Answer:
https://youtu.be/iik25wqIuFo
इसका उत्तर इस लिंक में है
Answer:
5x
product means muliply so 5 times x
Answer : 0.0129
Step-by-step explanation:
Given : Based on FAA estimates the average age of the fleets of the 10 largest U.S. commercial passenger carriers is 
years and standard deviation is 
years.
Sample size : 
Let X be the random variable that represents the age of fleets.
We assume that the ages of the fleets of the 10 largest U.S. commercial passenger carriers are normally distributed.
For z-score,
For x=14
By using the standard normal distribution table , the probability that the average age of these 40 airplanes is at least 14 years old will be :-
Hence, the required probability = 0.0129
Answer: she has 40 dimes and 160 quarters
Step-by-step explanation:
The worth of a dime is 10 cents. Converting to dollars, it becomes
10/100 = $0.1
The worth of a quarter is 25 cents. Converting to dollars, it becomes
25/100 = $0.25
Let x represent the number of dimes that she has.
Let y represent the number of quarters that she has.
Samantha cruz has 200 coins ( quarters and dimes). This means that
x + y = 200
she has $44.00. This means that
0.1x + 0.25y = 44 - - - - - - - - - - - 1
Substituting x = 200 - y into equation 1, it becomes
0.1(200 - y) + 0.25y = 44
20 - 0.1y + 0.25y = 44
- 0.1y + 0.25y = 44 - 20
0.15y = 24
y = 24/0.15
y = 160
x = 200 - y = 200 - 160
x = 40
