Step-by-step explanation:
Answer:
p(m - n) = x
Step-by-step explanation:
You want to "solve for x." To do this, subtract n from both sides (for the purpose of isolating the x/p term):
m - n + x/p
Next, multiply all terms by p:
p(m - n) = x
180° <0<270°
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Fran will meet her goal working 15 hours per week.
b.
Fran must work 17 hours per week to meet her goal.
c.
Fran must work 18 hours per week to meet her goal.
d.
Fran will not be able to reach her goal.
Based on the number of hours Fran works and the amount she saves, the true statement is that b. Fran must work 17 hours per week to meet her goal.
If Fran wants to save $1,400 after 20 weeks, the amount she should save weekly is:
= 1,400 / 20
= $70 per week
Her current wage rate is:
= 225 / 15
= $15 an hour
She currently saves $40 and can keep any amount she works over 15 hours. The number of hours she then needs to work over 15 hours is:
= (Target savings - Current savings) / Wage per hour
= (70 - 40) / 15
= 2 hours
Add this to her current hours:
= 15 + 2
= 17 hours per week
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Then with the appropriate order of operations,
Evaluate and simplify.
1. Three less than the product of thirteen squared and four.
2. The product of eight minus six and x.
3. The square root of thirty-six plus the sum of with and four squared.
4. Nineteen less than the product of seven and four minus the quotient of sixteen and four.
Symbolic form of the written expression are,
1.
2.
3.
4.
Here, given written expression are,
1. Three less than the product of thirteen squared and four.
2. The product of eight minus six and x.
3. The square root of thirty-six plus the sum of with and four squared.
4. Nineteen less than the product of seven and four minus the quotient of sixteen and four.
What is symbolic form?
A sentence written in symbolic form uses symbols and logical connectors to represent the sentence logically.
Now,
First statement is,
1. Three less than the product of thirteen squared and four.
Its symbolic representation,
⇒
Second statement is,
2. The product of eight minus six and x.
Its symbolic expression,
⇒
Third statement is,
3. The square root of thirty-six plus the sum of with and four squared.
Its symbolic expression is,
⇒
Fourth statement is,
4. Nineteen less than the product of seven and four minus the quotient of sixteen and four.
Its symbolic expression is,
⇒
Learn more about the symbolic expression visit:
https://brainly.in/question/30131946
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Answer:
a) 0.4215 = 42.15% probability that all are repaired in less than 6 hours.
b) 0.15 = 15% probability that exactly 3 of them repaired in a time below 6 hours
Step-by-step explanation:
To solve this question, we need to understand the normal and the binomial probability distributions.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
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.
Proportion repaired below 6 hours:
Mean 5 hours and standard deviation 1 hour, which means that
This proportion is the p-value of Z when X = 6. So
has a p-value of 0.8413.
0.8413 repaired below 6 hours.
For the binomial distribution, this means that
5 are chosen:
This means that
a) Probability that all are repaired in less than 6 hours
This is P(X = 5). So
0.4215 = 42.15% probability that all are repaired in less than 6 hours.
b) Probability that exactly 3 of them repaired below 6 hours
This is P(X = 3). So
0.15 = 15% probability that exactly 3 of them repaired in a time below 6 hours