Answer:
They payed $45
Step-by-step explanation:
First we have to find the unit rate. Divide 30/4 to get $7.5. 1 shirt costs $7.5.
Multiply 7.5 times the 6 skirts to get $45.
Hope this helps! Pls mark brainliest
At a certain university, the average attendance at basketball games has been 3125. Due to the dismal showing of the team this year, the attendance for the first 9 games has averaged only 2915 with a standard deviation of 585. The athletic director claims that the attendance is the same as last year. What is the test statistic needed to evaluate the claim
Answer:
The test statistic needed to evaluate the claim is t = -1.08.
Step-by-step explanation:
The test statistic is:
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the expected value of the mean, s is the standard deviation of the sample and n is the size of the sample.
At a certain university, the average attendance at basketball games has been 3125. The athletic director claims that the attendance is the same as last year.
This means that [tex]\mu = 3125[/tex]
Due to the dismal showing of the team this year, the attendance for the first 9 games has averaged only 2915 with a standard deviation of 585.
This means that [tex]n = 9, X = 2915, s = 585[/tex]
What is the test statistic needed to evaluate the claim?
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
[tex]t = \frac{2915 - 3125}{\frac{585}{\sqrt{9}}}[/tex]
[tex]t = -1.08[/tex]
The test statistic needed to evaluate the claim is t = -1.08.
- Yesterday Billy earned $30 trimming
hedges for Mrs. Gant. Today he will earn
$10 an hour for weeding her garden. If
he weeds her garden for 8 hours, how
much in all will he earn working for
Mrs. Gant?
11r + 7s written form plz i need help
Answer:
eleven r plus seven s
Step-by-step explanation:
thats the written form
How much will you pay for an item that is $13.35 on sale for 30% off?
$4.005
$9.33
$9.35
$10.35
Answer:
$9.35
Step-by-step explanation:
Find the sale price by multiplying 13.35 by 0.7, since this will be 70% of the original price
13.35(0.7)
= 9.345
This rounds to approximately 9.35
So, you will pay $9.35
Answer:
9.35 would be the answer!
Step-by-step explanation:
i would really appreciate a brainliest if this helped! <3
middle school math please help will mark brainlist!!
Answer:
1 one will be answer because of mahemetical reason
Evaluate 79-4*6+12/3
Answer:
59 (the answer should have a positive sign.)Step-by-step explanation:
To solve this problem, you have to solve with order of operations.
Order of operations stands for:
PEMDAS
Parentheses
Exponents
Multiply
Divide
Add
Subtract
Do multiply.
79-4*6+12/3
4*6=24
Rewrite the problem down.
79-24+12/3
Divide.
12/3=4
79-24+4
Add and subtract.
79-24=55
55+4
55+4=59
[tex]\sf\boxed{59}[/tex]
As a result, the final answer is 59.
Someone plsssssssssssssssssssssssssssssssssssssssssss help (Becca’s dog walking business started with 1 dog. She walks 2 additional dogs each month. How many dogs does she walk in the third month?)
NEED HELP ASAP FREE BRAINLIST
Answer:
D). 10699
Step-by-step explanation:
D is right the math is hard to explain.
Sabrina read a total of 185 pages in three days.
On the first day, she read 85 pages
· On the second and third days, she read the same
How many pages did she read on the third day?
Answer:
Sabrina read 50 pages on the third day.
Step-by-step explanation:
Since Sabrina read a total of 185 pages in three days, and on the first day, she read 85 pages, while on the second and third days, she read the same amount, to determine how many pages did she read on the third day the following calculation must be performed:
(185 - 85) / 2 = X
100/2 = X
50 = X
Therefore, Sabrina read 50 pages on the third day.
What is the first error Zoe made in her proof?
a. Zoe used an invalid reason to justify the congruence of a pair of sides or angles
b. Zoe only established some of the necessary conditions for a congruence criterion.
c. Zoe established all necessary conditions, but then used an inappropriate congruence criterion.
d. Zoe used a criterion that does not guarantee congruence
iui
Answer:
a
Step-by-step explanation:
To prove congruence
1 ∠ A ≅ ∠ C → given
2 ∠ DEA ≅ ∠ BEC → vertically opposite angles
3. AE ≅ EC → given
We then have 2 angles and the included side ( side between the 2 angles )
congruent in both triangles, thus Δ AED ≅ Δ CEB ( ASA postulate )
Zoes' error was in assuming ∠ DEA ≅ ∠ BEC was given
Zoe used an invalid reason to justify the congruence of a pair of sides or angles.
Option a is correct.
From given diagram it is observed that,
Line segment AD and CB are parallel and AC is transversal line. So that alternate angles A and C are equal.
[tex]\angle A=\angle C[/tex]
When two lines intersect at any point then vertically opposite angles are equal.
So that, [tex]\angle DEA=\angle BEC[/tex]
Given that , [tex]AE=EC[/tex]
The Angle-Side-Angle Postulate (ASA) states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.
Hence, both triangles are congruent to each other.
Learn more:
https://brainly.com/question/25920974
A standard number cube, labeled numbers 1-6 on each side, is rolled three times. Mary says the chance of rolling a 2 all three times is 1/8. But John disagrees and says the probability for rolling a 2 all three times is 1/216. Who calculated the correct probability or rolling a 2 the three times the n number cube is rolled? Show work to justify your reasoning.
Answer: john answer it correctly
Step-by-step explanation:
6.6.6_=216
Find the decimal number halfway between the following decimal number 0.7 and 0.5
Answer:
0.6?
Step-by-step explanation:
confused by the question but thats the middle decimal..
pls it's due today.
Miguel cuts a square with 5 inch sides out of a circle with a 12 inch diameter. Find the area of the remaing piece of the nearest tenth. Show all work
Answer:
[tex]31 \times \frac{52}{24x6} [/tex]
In the data set below, what are the lower quartile, the median, and the upper quartile. 13, 16, 16, 17, 51, 57, 62, 72, 92, 97
Answer:
I'm rusty on this but I believe:
the median is 54
the lower quartile = 16
the upper quartile is 72
-7 u = -14/3. Solve for u.
Answer:
x = 2/3 is the answer. Good luck with work
Answer:
u = 2/3
Step-by-step explanation:
divide each side by -7 but remember to multiply by the reciprocal when dividing fractions:
u = -14/3 ÷ -7/1
u = -14/3 × -1/7
u = 14/21 which reduces to 2/3
Please help my little brother!!!!
Answer:
H
Step-by-step explanation:
Answer:
H. 3.9
Step-by-step explanation:
5.6 - 1.7 = 3.9
use the Pythagorean theorem to find the distance between (-5,2) and (10,10)
D^2 = (x2-x1)^2 + (y2-y1)^2
D =sqrt((10+5)^2 + (10-2)^2)
D P SQRT(15^2 + 8^2)
D = sqrt(225 +64)
D= sqrt(289)
D = 17
The distance is 17
Under her cell phone plan, Savannah pays a flat cost of $37.50 per month and $3 per
gigabyte. She wants to keep her bill at $51.90 per month. Which equation or tape
diagram could be used to represent the context if g represents the number of
gigabytes of data Savannah can use while staying within her budget?
Answer:
(51.90 - 37.50) / 3 = G
14.40 / 3 = G
4.8 = G
Savannah will be able to use 4 gigabytes to stay within her budget.
Step-by-step explanation:
Given that under her cell phone plan, Savannah pays a flat cost of $ 37.50 per month and $ 3 per gigabyte, and she wants to keep her bill at $ 51.90 per month, to determine which equation or tape diagram could be used to represent the context if g represents the number of gigabytes of data Savannah can use while staying within her budget, the following calculation should be performed:
(51.90 - 37.50) / 3 = G
14.40 / 3 = G
4.8 = G
Therefore, Savannah will be able to use 4 gigabytes to stay within her budget.
Use the elimination method to solve the system of equations. Choose the
correct ordered pair.
10x+2y=64
3x - 4y = -36
O A. (4, 12)
B. (2,10)
o
C. (-5,8)
O D. (-3, 11)
9514 1404 393
Answer:
A. (4, 12)
Step-by-step explanation:
Adding the second equation to twice the first will eliminate y.
2(10x +2y) +(3x -4y) = 2(64) +(-36)
23x = 92 . . . . . . . . simplify
x = 4 . . . . . . . . . divide by 23
This value matches choice A: (4, 12).
The roof pictured below has a rise of 10 feet and a run of 15 feet.
Run = 15 feet
Rise = 10 feet
-
What is its slope?
The slope of the considered roof which has a rise of 10 feet and a run of 15 feet is 2/3
How to find the slope?Slope of a line or straight object is the ratio of how much amount of rise occurs in correspondence to the increament in the run.
Thus, we get:
Slope = rise/ run
For this case, we're specified that:
The rise in roof = 10 ft and the run of 15 ft.
Thus, we get:
Slope = rise / run = 10/15 = [tex]\dfrac{5 \times 2}{5 \times 3} = \dfrac{2}{3}[/tex]
Thus, the slope of the considered roof which has a rise of 10 feet and a run of 15 feet is 2/3
Learn more about slope here:
https://brainly.com/question/2503591
A company estimates that 0.1% of their products will fail after the original warranty period but within 2 years of the purchase, with a replacement cost of $350. If they offer a 2 year extended warranty for $28, what is the company's expected value of each warranty sold?
Answer:
The expected gain per warranty is $27.65, crazy stuff
Step-by-step explanation:
If the estimate is right, there is a 0.1% probability for each extended warranty that the company has to shell out $350 (we disregard the situation where the replacement fails too, because there is no info that lets us deal with that).
This brings us to cost for the company equal to 0.1%*$350 per warranty sold.
0.1%*$350 = 0.001*$350 = $0.35
And the company gets $28 for each warranty sold, hence they earn
$28 - $0.35 = $27.65
on average.
What is the answer to this pls help
Step-by-step explanation:
Circumference is 6π = 18.85 in
if you were looking for area
9π = 28.27 in
Answer:
18.85 would be your answer sorry I was so late
Step-by-step explanation:
Please help on both questions. I would appreciate it.
Answer:
first one is 4.5 second one is 45
Step-by-step explanation:
A recent survey reported that small businesses spend 24 hours a week marketing their business. A local chamber of commerce claims that small businesses in their area are not growing because these businesses are spending less than 24 hours a week on marketing. The chamber conducts a survey of 88 small businesses within their state and finds that the average amount of time spent on marketing is 23.2 hours a week. Assuming that the population standard deviation is 4.2 hours, is there sufficient evidence to support the chamber of commerce’s claim at the 0.05 level of significance?
Step 1 of 3:
State the null and alternative hypotheses for the test. Fill in the blank below. H0Ha: μ=24: μ⎯⎯⎯⎯⎯⎯⎯⎯24
Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.
Step 3 of 3: Draw a conclusion and interpret the decision.
Answer:
Following are the responses to the given choices:
Step-by-step explanation:
In step 1:
State the zero and alternate test hypotheses. Insert underneath.
[tex]H_0 : \mu = 24: H_a : \mu < 24[/tex]
[tex]H_0[/tex] Smaller companies in their region are and they spend at least 24 hours per week on the marketing of the these companies
[tex]H_1[/tex] There really is no growth for smaller firms in their area because the companies spend or less 24 hours per week on marketing.
In step 2:
Each test statistics meaning is calculated. Around two decimal places for your reply.
[tex]z=\frac{\bar{X}-\mu_{0}}{\frac{\sigma}{\sqrt{n}}}=\frac{23.2-24}{\frac{4.2}{\sqrt{88}}}=-1.787[/tex]
In step 3:
Draw a start and write the decision.
Since it is observed that [tex]z=-1.787 < z_c=-1.64[/tex] it is then concluded that the null hypothesis is rejected.
Consequently we consider that small companies in their field may not expand, as they spend or less 24 hours per week on marketing.
What is the surface area of a cylinder that is 5 centimeters high and has a diameter of 1.5 centimeters?
7.51 cm2
8.6251 cm2
o
10.5 cm
19.551 cm2
Answer: SA≈27.1.
The formula is SA=2πrh+2πr2.
The radius is 0.75 since 1.5 divided by 2=0.75.
Plug it in.
The radius of a. circular garden is 15 feet. About how much fencing will be needed to enclose the garden?
Answer:
94.2 ft of fencing
Step-by-step explanation:
To answer this, find the circumference, C, of the garden, using the circumference formula C = 2(pi)r.
Here, with r = 15 ft, we get C = 2(3.14)(15 ft) = 94.2 ft of fencing will enclose this garden.
una escuela debe transportar 200 estudiantes
Answer: a school must transport 200 students
Step-by-step explanation:
Solve for x: 3-a/x-a=1/a
PLEASE HELP NEED ASAPPP WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWERRRR
Answer:
x= -a2(the 2 means squared)/1-3a+a2
Step-by-step explanation:
I rll hope this helps
Answer:
x= a^2
----------------
1 - 3a + a^2
Step-by-step explanation:
1 hundredth+3 tenths equal what
.Answer:
The answer is .31
Step-by-step explanation:
When there is a “th” at the end of the number it signals that the number is to the right of the decimal.
Tenths are immediately to the right of the decimal, next is hundredths, then thousandths, and so on.
An empty swimming pool is to be filled to the top. The pool is shaped like a rectangular prism with length 12 m, width 8 m, and depth 4 m.
Suppose water is pumped into the pool at a rate of 24 m per hour. How many hours does it take to fill the empty pool? (NO LINKS , links will get you reported / booted
Answer:
16 hours
Step-by-step explanation:
first find the volume if the pool 12x8x4=384 then divide by how many meters per hour 384÷24=16