Using mathematical operations, the amount that Louisa paid for the entry fee is $12.5.
What are mathematical operations?The basic mathematical operations include addition, subtraction, division, and multiplication.
These mathematical operations combine values, numbers, and variables with mathematical operands to solve mathematical problems.
For instance, the variable cost per ride ticket is given as $1.25. There are a total of 25 ride tickets spent by Louisa.
Mathematically, the total variable cost is the product of per unit cost and total ride tickets.
The total variable cost is subtracted from the total amount spent to determine the fixed entry fee.
Fee per ticket = $1.25
Total amount spent by Louisa = $43.75
The number of ride tickets = 25
The fixed entry fee per person = $12.50 ($43.75 - $1.25 x 25)
Thus, whereas, Louisa spent $1.25 per ride ticket, she spent $12.50 as the fixed entry fee.
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Mike's Music charges $45 per hour. Tim's Tunes
charges $80 plus $25 per hour. If you have $240, how many hours will Mike's Music
play?
1. 6 hours
2. 5 hours
3. 6 2/5 hours
4. 5 1/3 hours
Answer:
Answer 4. (5 1/3 hours)
Step-by-step explanation:
240/45=5.333333333
Answer:
4. 5 1/3 hours
Step-by-step explanation:
Mike's music:
y = 45x
Tim's Tunes:
y = 80 + 25x
Mike's music:
y = 45x
240 = 45x
x = 240/45
x = 5 1/3
Freshman, sophomore, junior, and senior students at a high school will be surveyed regarding a potential increase in the extracurricular student activities fee. There are three possible responses to the survey question - agree with the increase, do not agree with the increase, or no opinion. A chi-square test will be conducted to determine whether the response to this question is independent of the class in which the student is a member. How many degrees of freedom should the chi-square test have
Answer:
The degrees of freedom is 6 for the chi square independence test.
Step-by-step explanation:
This is test hypothesis of independence. The test statistic under H0 is
χ²= ∑ (O - E)²/ E
where O is the observed and E is the expected frequency
which has an approximate chi square distribution with ( r-1) (c-1) degrees of freedom, where r= rows and c= columns.
Here there are 4 rows and 3 columns
Hence the degrees of freedom will be
( 4-1) ( 3-1)= 3*2= 6
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Oscar invested $5000 in an
account that pays 4% annual
simple interest. Oscar will not make
any additional deposits or withdrawals.
How much interest will Oscar earn on
his investment at the end of 3 years?
A runner moves 8 miles every 1 minute. Write and graph an equation in two variables that shows the relationship between time and distance
Answer:
what grade is this?
Step-by-step explanation:
k is no greater than 9
Answer:
Agree with u98888888888
Answer:
i agreee
Step-by-step explanation:
1 . What is the distance between the two points. (0,5 1,3), (-0,4, -1,3) ?
Answer:
Step-by-step explanation:
x1 = 0.5 x2 = -0.4 y1 = 1.3 y2 = -1.3
[tex]\sqrt{(x2 - x1)^{2}+(y2 - y1)^{2}[/tex]
[tex]\sqrt{(-0.4 - 0.5)^{2}+(-1.3 - 1.3)^{2}[/tex]
=2.75
Number 2 all of number 2
Answer:
1) True
2)False
3)True
Step-by-step explanation:
complete the conversion
7480 yd _ mi
The answer is 4.25 miles
37. The sum of two numbers is 86. The larger number is nine less than four times the smaller number. Find both numbers.
The larger number is 67 while the smaller number will be 19 for the given condition.
What is a number system?The number system is a way to represent or express numbers.
A decimal number is a very common number that we use frequently.
Since the decimal number system employs ten digits from 0 to 9, it has a base of 10.
As per the given,
Suppose the larger number is x while the smaller number is y.
Sum will be as x + y = 86
The larger number is nine less than four times the smaller number.
x = 4y - 9
By substitution,
4y - 9 + y = 86
5y = 95
y = 19
x = 86 - 19 = 67
Hence "For the specified condition, the greater number is 67 and the smaller number is 19".
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What is the are of the arrow?
Answer:
84
Step-by-step explanation:
First you need to find the area of the square. You have to multiply 4x10 which is 40. So now you have to find the area of the triangle. To do that you have to use this equation base x Height/2. Basically 6 times 3.5 is 21/2 so its 10.5. Since you have 2 triangles you can just multiply by 2 which is 42 so 42 + 42 is 84
please help me
Simplify 6(11p)
Answer:
66p
Step-by-step explanation: remove the parenthesis then multiply 6 x 11p = 66p
Write and simplify an algebraic expression to represent the area of the shaded region. The image is below.
Plz solve with a full proces. God bless u very much. I will give brainliest
[tex](x+2)^2 - 1\cdot(x-5) = x^2 + 2\cdot2x + 2^2 - (x - 5) = x^2 + 4x + 4 - x + 5 = x^2 + 3x + 9[/tex]
Please help I’ll mark you as brainliest if correct!
Answer: 18
Explanation: 18 times 2.5 is 45. 45 +18=63
Answer:
the answer would be 25 because to get the answer you would take 63 and divide it by 2.5 and you will get 25.2 then rounding it to the nearest 10th would be 25
then after you get 25 you would put it into the equation 2.5(x) = 63 which would be 2.5(25)=63. that it y 25 would be the correct answer.
Hope this helped
PLEASE ANSWER ASAP FOR BRAINELST!!!!!!!!!!!!!!!!!!!!! :D
please show work if you can. thank you in advance! (NO LINKS OR YOU WILL BE REPORTED!!!!)
Answer:
True
True
False
False
Step-by-step explanation:
Not absolutely positive, but I believe this is correct.
What is the price of a $90 mobile phone after a 30% discount?
Answer:
I believe it would be 63 because the phone costs 90 dollars originally but with the discount being 30% (90 multiply 0.3) and you get $27. However then you gotta then subtract (90-27) to get 63.
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company is actually 1 gallon. You select a random sample of 100 bottles, the mean amount of water per 1-gallon bottle is 0.994 gallon, and standard deviation of the amount of water per bottle is 0.03 gallon.
You select a random sample of 50 bottles, and the mean amount of water per 1-gallon bottle is 0.995 gallon.
a. Is there evidence that the mean amount is different from 1.0 gallon? (Use α-0.01.)
b. Compute the p-value and interpret its meaning
c. Construct a 99% confidence interval estimate of the population mean amount of water per bottle.
d. Compare the results of (a) and (c). What conclusions do you reach?
Answer:
We fail to reject H0; Hence, we conclude that there is no significant evidence that the mean amount of water per gallon is different from 1.0 gallon
Pvalue = - 2
(0.98626 ; 1.00174)
Since, 1.0 exist within the confidence interval, then we can conclude that mean amount of water per gallon is 1.0 gallon.
Step-by-step explanation:
H0 : μ= 1
H1 : μ < 1
The test statistic :
(xbar - μ) / (s / sqrt(n))
(0.994 - 1) / (0.03/sqrt(100))
-0.006 / 0.003
= - 2
The Pvalue :
Pvalue form Test statistic :
P(Z < - 2) = 0.02275
At α = 0.01
Pvalue > 0.01 ; Hence, we fail to reject H0.
The confidence interval :
Xbar ± Margin of error
Margin of Error = Zcritical * s/sqrt(n)
Zcritical at 99% confidence level = 2.58
Margin of Error = 2.58 * 0.03/sqrt(100) = 0.00774
Confidence interval :
0.994 ± 0.00774
Lower boundary = (0.994 - 0.00774) = 0.98626
Upper boundary = (0.994 + 0.00774) = 1.00174
(0.98626 ; 1.00174)
Which equation represents circle k shown in the graph below? Help plz
Answer:
-5-1
Step-by-step explanation:
Find the distance between the two points rounding to the nearest tenth (if necessary).
(-1,4) and (8, 2)
Answer:
9.2 ([tex]\sqrt{85[/tex][tex]\sqrt{85}[/tex])
Step-by-step explanation:
square root of (8-(-1))^2 + (2-4)^2) which is square root of 85 which is approximately 9.2 rounded to the nearest tenth
Answer:
9.2
Step-by-step explanation:
Using the graph, determine the coordinates of the x-intercepts of the parabola.
find the interquartile range. its question 5 and four
Answer:
I think the interquartile range is 2.5
Step-by-step explanation:
Interquartile range = Q3-Q1.
What's negative 4 times p
Answer:
The answer will b -4p
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Solve the following exponential equation. Round to the nearest thousandth place (3 decimal places)
5^3x+7 =311
Answer:
x= 2.432
Step-by-step explanation:
Matt walked 1 mile in 15 minutes. At this rate, how many miles would he walk in 2 hours?
Alan has forgotten his 4-digit PIN code. He knows the second digit is even, and last digit is 7. How many different sets of 4 digits could it be?
Answer:
500
Step-by-step explanation:
What is (3x^2+ 4x - 7) / (x - 1)?
A. 3x+1
B. X-1
C. 3x+7
D. 7x-7
Answer:
[tex]\tt{}b. \: 3x + 7 [/tex]
Step-by-step explanation:
[tex]\tt{} \frac{(3 {x}^{2} + 4x - 7) }{(x - 1)} [/tex]
[tex]\tt{} \frac{{3x}^{2} + 7x - 3x - 7}{x - 1}[/tex]
[tex]\tt{} \frac{x \times (3x + 7) - (3x + 7)}{x - 1} [/tex]
[tex]\tt{} \frac{(3x + 7) \times (x - 1)}{x - 1} [/tex]
[tex]\tt{}3x + 7[/tex]
michaela spent $33 on 3 rose bushes and 3 pots of ivy. totsakan spent $92 on 12 rose bushes and 4 pots of ivy. find the cost of one rose bush and the cost of one pot of ivy
Answer:
One rose bush costs $6
One pot of ivy costs $5
Step-by-step explanation:
Set up an equation:
Variable x = cost of rose bushes
Variable y = cost of pots of ivy
3x + 3y = 33
12x + 4y = 92
I will use substitution to first solve for x:
3y = 33 - 3x
Divide both sides by 3
y = 11 - x
Substitute y value for 11 - x:
12x + 4(11 - x) = 92
Use distributive property
12x + 44 - 4x = 92
Combine like terms
8x + 44 = 92
8x = 48
Divide both sides by 8
x = 6
Solve for y by plugging in 6 for the x value:
3(6) + 3y = 33
18 + 3y = 33
3y = 15
Divide both sides by 3
y = 5
Check work:
3(6) + 3(5) = 33
18 + 15 = 33
33 = 33
Correct
find the volume of the cone Diameter:10 m and Height:10m
Answer:
V = 260.2 m^3
Step-by-step explanation:
The area of the circular base is (pi)(r)^2, where r is the radius and half the diameter.
In this case the volume of the cone is V = (1/3)(pi)(5 m)^2*(10 m) = 260.2 m^3
Answer: 262
...........................
BC
Round your answer to the nearest hundredth.
А
50°
?
3
B
Use the sine function.
sine = opposite side of triangle divided by the hypotenuse.
Here is the set up:
sin(50°) = BC/3
sin(50°)/3 = BC
Use your calculator to simply left side.
Take it from here.
A newspaper article indicated that 43 percent of cars with black seats are white, 46 percent of cars with black seats are blue, 7 percent of cars with black seats are red, and 4 percent of cars with black seats are black. A test was conducted to investigate whether the color of cars with black seats was consistent with the newspaper article. A random sample of cars of these colors was selected, and the value of the chi-square test statistic was x = 8.2. Which of the following represents the p-value for the test?
A) P(x2 ≥ 8.2) = 0.08
B) P(x2 ≥ 8.2) = 0.04
C) P(x2 ≤ 8.2) = 0.96
D) P (x2 = 8.2) = 0.00
E) The p-value cannot be calculated because the sample size is not given.
Answer:
C) P (X2 ≤ 8.2) = 0.96
Step-by-step explanation:
P value for the test is the probability of obtaining results that have been observed in the null hypothesis statement. A very small value of p indicates that there is unlikely chance of null hypothesis being true which means that we cannot accept null hypothesis based on the small p value.
Answer:
P(χ2≥8.2)=0.04
Step-by-step explanation:
Just took the test. This was correct
10) Triangle GHK has an area of 273cm². Write and solve an equation to find the height, h, of triangle GHK
base is 26 cm
Answer:
21cm
Step-by-step explanation:
A=(b*h) /2-->h=(2*A)/b-->
h=(2*273)/26-->
h=21 cm