Answer:
29
Step-by-step explanation:
345 tickets = 345 x 7.50 = £2587.5 this means 345 - 374 = 29
how to get 374:
17 x 22 = 374
29 tickets were not sold.
Given that,
There are 17 rows of seats in a cinema.
There are 22 seats in each row.
Each ticket for the film cost £7.50
The sale of tickets for that night made £2587.50
How many tickets were not sold?
According to the question,
There are 17 rows of seats in a cinema.
There are 22 seats in each row.
Each ticket for the film cost £7.50
The sale of tickets for that night made £2587.50
Then,
Total number of seats is,
= 17 x 22 = 374
Number of tickets sold = £2587.50 / £7.50 = 345
Therefore,
45 people filled 345 seats
Unoccupied seats = 374 - 345 = 29
Therefore, 29 tickets were not sold.
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A study of 1000 randomly selected flights of a major airline showed that 798 of the flights arrived on time. What is the probability of a flight arriving on time? 399/500 500/399 101/500 500/101
Answer:
399/500
Step-by-step explanation:
the reason for this is because the area of the devision "1000 randomly selected flights of a major airline showed that 798 of the flights arrived on time" means that this is divided into places to make a full example
The probability of event of a flight arriving on time will be -
P(A) = 399/500.
What is Probability?
Probability is the extent to which an event is likely to occur and is measured by the ratio of the favorable cases to the total number of cases possible.
Given is a study of 1000 randomly selected flights of a major airline which showed that 798 of the flights arrived on time.
Let event A represents the arrival of flight on time.
Total number of favorable cases = 798
Total number of possible cases = 1000
Then the probability of event A will be -
P(A) = 798/1000 = 399/500
Therefore, the probability of event of a flight arriving on time will be -
P(A) = 399/500
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Does this graph represent a function? Why or why not? A. No, because it is not a curve. B. No, because it fails the vertical line test. C. Yes, because it passes the vertical line test. D. Yes, because it has two straight lines.
Answer: B, it fails it he vertical line test.
Step-by-step explanation: If you made vertical line anywhere on the graph line, it would intersect at two points, making it fail the vertical line test.
What is the solution to the system of equations graphed below?
Answer:
(-2, 3)
Step-by-step explanation:
Given that (x−1)^2 is a factor of ax^3+bx^2+1 , find a and b .
Key in the answer in the form a, b
Answer:
[tex]a=1[/tex]
[tex]b=-1[/tex]
Step-by-step explanation:
Once [tex](x-1)^2[/tex] is a factor and [tex](x-1)^2 = (x-1)(x-1)[/tex], we have that two roots of the cubic equation are equal to 1. So,
[tex]ax^3+bx^2+1 = (x-1)(x-1)(x-d)=0[/tex]
As [tex]d[/tex] the unknown root.
Expanding
[tex]ax^3+bx^2+1 = (x-1)(x-1)(x-d)=0[/tex]
[tex]ax^3+bx^2+1 = (x^2-2x+1)(x-d)=0[/tex]
[tex]ax^3+bx^2+1 = x^3-2x^2+x-dx^2+2dx-d=0[/tex]
Now, comparing the two expressions, we have
[tex]ax^3+bx^2+1 = x^3+(-2-d)x^2+(1+2d)x-d=0[/tex]
Therefore, know we know
[tex]a=1[/tex]
[tex]b=-2-d[/tex]
[tex]d=-1[/tex]
So,
[tex]b=-2-(-1)=-2+1=-1[/tex]
2(3-2x)
32x-3(x+1) for x=-2
5
substitute x=3 into 3x-x²
Answer:
i wish i could help
Step-by-step explanation:
For the next employee, what is the probability that the number of days of vacation taken is less than 10 days? What is the probability that the number of days of vacation taken is more than 21 days? Discuss the solutions and an explanation. Respond to your peers’ posts and offer your feedback on this topic.
Answer:
The answer is below
Step-by-step explanation:
The number of vacation days taken by employees of a company is normally distributed with a mean of 14 days and a standard deviation of 3 days. For the next employee, what is the probability that the number of days of vacation taken is less than 10 days? More than 21 days?
Answer: Z score is used in statistics to determine by how many standard deviations the raw score is above or below the mean. It is given by the equation:
[tex]z=\frac{x-\mu}{\sigma}\\ \\x=raw\ score,\mu=mean,\sigma=standard\ deviation[/tex]
Given that: μ = 14, σ = 3
a) For x < 10
[tex]z=\frac{x-\mu}{\sigma}\\ \\z=\frac{10-14}{3}=-1.33[/tex]
From the normal distribution table, P(x < 10) = P(z < -1.33) = 0.0918
b) For x > 21
[tex]z=\frac{x-\mu}{\sigma}\\ \\z=\frac{21-14}{3}=2.33[/tex]
From the normal distribution table, P(x > 21) = P(z > 2.33) = 1- P(z < 2.33) = 1 - 0.9901 = 0.0099
what is 6units to the right of -1 is
Answer:7
Step-by-step explanation:
Answer:
5Step-by-step explanation:
6 Units to the right :
-1 = 0 Units
0 = 1 Units
1 = 2 Units
2 = 3 Units
3 = 4 Units
4 = 5 Units
5 = 6 Units
Answer = 5Hope this helps! <3
Each day, Emily reads 40 pages
of a 560-page book. Write a linear
equation to represent the number
of pages Emily has left to read
after x days.
Answer:
y=560-40x
Step-by-step explanation:
you start with 560 pages and you read 40 pages a day so you take away 40 pages from the total per x.
If f(x) = 2x2 +5./(x-2), complete the following statement:
f(0) =
Answer:
F(6)=82
Step-by-step explanation:
19. Daunte's owes him Dad $9.00. He earns $14.00 doing chores. How much did Daunte
receive after his Dad took out what he owed him?
Mt. Everest, the highest elevation in Asia, is 29,028 ft above sea level. The Dead Sea, the lowest elevation, is 1,312 ft below sea level. What is the difference in the elevations? Choose the correct equation and answer. I need the answer immediately!
Answer:
30,340 ft
Hope this helps.
Messages arrive at a computer at an average rate of 25 messages per second. The number of messages that arrive in 1 second is known to be a Poisson random variable. a. Find the probability that no message arrive in 1 second. b. Find the probability that more than 5 messages arrive in a 10-second period.
Answer:
a)[tex]1.3887943865 \times 10^{-11}[/tex]
b)P(X>5)=1
Step-by-step explanation:
[tex]P(X=x)=\frac{e^{-\lambda} \lambda^k}{k!}[/tex]
We are given that Messages arrive at a computer at an average rate of 25 messages per second.
[tex]\lambda = 25[/tex]
a) Find the probability that no message arrive in 1 second.
[tex]P(X=0)=\frac{e^{-25} (25)^0}{0!}\\P(X=0)=\frac{e^{-25} (25)^0}{0!}\\P(X=0)=1.3887943865 \times 10^{-11}[/tex]
b) Find the probability that more than 5 messages arrive in a 10-second period.
[tex]P(X>5)=1-P(X \leq 5)[/tex]
[tex]P(X>5)=1-\sum_{0}^{10} (P(X=0)+P(X=1)+........+P(X=5))[/tex]
P(X>5)=1
The recipe calls for 4 cups of broccoli, but Roselyn has only a 2/3 cup measure. How many measuring cups of broccoli should she add?
Answer:
6
Step-by-step explanation:
If the recipe calls for 4 cups of broccoli and she only has 2/3 cup measure you have to think how many 1/4 are in a cup there are 3 1/4 in 1 cup and you count 1/4, 2/3, 1 cup. So...you have to count the cups is 6.
hope this helps I maybe be wrong sorry☺️
In which pair do both decimals represent rational numbers?
O A. 2.71828182845904523536... and 0.1222
O B. 3.141592653589793238... and 0.684
O C. 3.141592653589793238... and 0.1222...
O D. 0.684 and 0.1222...
Answer:
Option (B)
Step-by-step explanation:
Properties of a rational number:
1). A decimal number which has the repeating numbers after decimal is a rational number.
Example: 2.134134134......
Here 134 is repeating after decimal so the number is a rational number.
2). A decimal number which can be written as a fraction is a rational number.
Example: 0.25 = [tex]\frac{1}{4}[/tex]
Here 0.25 can be written as a fraction [tex]\frac{1}{4}[/tex] therefore, its a rational number.
In the given options,
Option A
No repeating numbers in first number therefore its an irrational numbers.
Option B
0.684 = [tex]\frac{171}{250}[/tex]
Option C
First number is an irrational number.
Option D
First number is an irrational number.
Therefore, Option (B) is the answer.
Answer:D
O D. 0.684 and 0.1222...
For each pound there are 16 ounces.
Write an equation to express the total number of ounces (Z) in (Y) pounds.
Answer:
Z = 16Y
For instance, let's say we want to know how many ounces there are in 2 pounds.
We'd enter in Z = 16(2). This would be simplified to Z = 32. Now, we know that there are 32 ounces in 2 pounds.
Annie needs to change the price of a pile of sweaters. She is told to apply a discount function on each price, d(p)=.85p
d
(
p
)
=
.85
p
, and then increase the resulting price: r(p)=p+10
r
(
p
)
=
p
+
10
.
What is the function that Annie can use to calculate both price changes?
f(p)=0.85p+(p+10)
f of p is equal to 0 point 8 5 p plus open paren p plus 10 close paren
r(d(p))=0.85p+10
r times open paren d times p close paren is equal to 0 point 8 5 p plus 10
f(p)=0.85p⋅(p+10)
f of p is equal to 0 point 8 5 p times open paren p plus 10 close paren
d(r(p))=0.85p+8.50
d times open paren r times p close paren is equal to 0 point 8 5 p plus 8 point 5 0
Answer:
Step-by-step explanation:
0.85 + 10
The function that Annie can use to calculate both price changes is f(p) = 1.85p+10. Therefore, option A is the correct answer.
Given that, a discount function on each price, d(p)=0.85p and then increase the resulting price is r(p)=p+10.
What is discount?A discount is the reduction of either the monetary amount or a percentage of the normal selling price of a product or service.
Now, the function that Annie can use to calculate both price changes
f(p) = d(p)+r(p)
⇒ f(p) = 0.85p+(p+10)
⇒ f(p) = 1.85p+10
The function that Annie can use to calculate both price changes is f(p) = 1.85p+10. Therefore, option A is the correct answer.
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What should be completed first when simplifying 2(x - 3) + 6(4x + 1)?
Answer:
Step-by-step explanation:
Distribute first!
2 (x-3) + 6(4x +1)
Then add your like terms:
2x-6 + 24x +6
24x + 2x/ 6-6
ANSWER: 26x
Answer:
evaluate the terms within the parenthesis
Step-by-step explanation:
The container of orange juice held 5 and one-third cups of juice. If a serving of orange juice is StartFraction 7 Over 8 EndFraction of a cup of orange juice, to the nearest whole serving, how many servings were in the container?
Answer:
i need help on my work because im lost
Answer:
6
Step-by-step explanation:
I don't know how I got the answer but it was right so...
Your plan calls for using apprentice plumbers in place of fully licensed plumbers for some jobs. If the apprentice plumbers
are 60% as productive as licensed plumbers and licensed plumbers cost $60 per hour, what is the most you should pay for apprentice
plumbers?
A) $8
B) $36
C) $60
The payment made for apprentice plumbers is $36.
Given that,
There is 60% as productive as licensed plumbers.And, the cost of licensed plumbers is $60 per hour.Based on the above information, the calculation is as follows:
[tex]= 60\% \times \$60[/tex]
= $36
Therefore we can conclude that the payment made for apprentice plumbers is $36.
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store has a sale for 25% off all items. The sale price of an item is $16. Which equation would calculate the original price of the item?
A. y-25=16 B.0.75y=16 C. y+75=16 D. 0.25y=16
Answer:
25
Step-by-step explanation:
The correct equation to calculate the original price of the item is,
⇒ 0.75y = 16
What is mean by Percentage?A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
We have to given that;
Store has a sale for 25% off all items.
And, The sale price of an item is $16.
Now, Let the original price of an item = y
So, We can formulate;
⇒ y - 25% of y = 16
⇒ y - 0.25y = 16
⇒ 0.75y = 16
Thus, The correct equation is,
⇒ 0.75y = 16
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What is the distance between the points (4, -2) and (-5,3)?
Answer:
(5,-9)
Step-by-step explanation:
use formula [tex]y^2-y^1/x^2-x^1[/tex]
so, 3-(-2)/-5-4
which gives you (5,-9)
I think it’s 125 but idk yet
Answer:
5
Step-by-step explanation:
5*5=25
25*5=125
What is the equation of this graphed line?
A graph with a line running through coordinates (-4, -6) and coordinates (2, 6)
Enter your answer in slope-intercept form in the box.
50 BRIANLIEST
Answer:
-6-6/2-(-4)=-2
slope=-2
Step-by-step explanation:
Find the gcf of 24x - 6
Answer:
6(4x-1)
Step-by-step explanation:
How do I find a ratio table that looks like this
Answer:
Ok what is something times 4 to give you 24 that's 6 so what is something times 6 that will give you 18 thats 2 so then what times 6 will give you 60 thats 10 and the same thing for 5 ,5 times 6 equals 30.
Step-by-step explanation:
4/24 is dividing = 6
18/6 = 2
60/6=10
5 x 6 = 60
6,2,10,60 are your answers
Answer:
It's not that hard. Use your eyes to look for it.
Step-by-step explanation:
Find the slope of the line passing through the points (4,4) and (-7,-3)
Answer:
i got -7/-11 but it might be wrong :/ sorry
Step-by-step explanation:
what is simplify the expression.
2/3y+1/6y+y =?
-(7x + 9) = -6(x + 4)
Answer:
x = 21
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
x = 21
Select the correct answer.
Which expression simplifies to 3V11?
A. 14
B. 20
C. 33
D. 199
