Expenses that are incurred directly or entirely in connection with the selling of merchandise are classified as
the sum of a number and ten is twenty in algebraic equation
Step-by-step explanation:
Let the number be x. Then x + 10 = 20.
This is all you need to write out. But, for practice, find the solution as well.
Answer:
let the number be x
now,
x+10 =20
or,x=20-10
= x=10
Step-by-step explanation:
number = x
sum of number and ten is twenty
so, x +10=20
With individual lines at its various windows, a post office finds that the standard deviation for normally distributed waiting times for customers on Friday afternoon is 7.2 minutes. To test this claim, the post office experiments with a single, main waiting line and finds that for a random sample of 25 customers, the waiting times for customers have a standard deviation of 3.5 minutes. a) With a significance level of 5 percent, conduct an appropriate test on the claim. (State your null hypothesis, test statistic, critical value, decision rule, conclusion) (15 points) b) What is the 95% confidence interval for the population variance
Answer:
H0 : σ²= 7.2²
H1 : σ² < 7.2
We can conclude that the mean waiting time of customers vary less, Than 7.2 minutes.
Step-by-step explanation:
H0 : σ²= 7.2²
H1 : σ² < 7.2²
The test statistic :
X² = [(n - 1)*s² ÷ σ²]
s² = 3.5
n = sample size = 25. ; s²
X² = [(25 -1)*3.5² ÷ 7.2²
X² = (24 * 3.5^2) / 7.2^2
X² = 5.67
Pvalue from Chisquare statistic :
P(X² < 5.67) = 0.000042
Pvalue < α ; we reject the Null.
Hence, we can conclude that the mean waiting time of customers vary less, Than 7.2 minutes.
Given the supply and demand functions below, find the demand when p = $12.
S(p) = 5p
D(p) = 120 - 4p
Answer:
S(p)=$60
D(p)=$72
Step-by-step explanation:
S(p)=5(12)
S(p)=60
D(p)=120-4(12)
D(p)=120-48
D(p)=72
From the supply and demand functions below, the demand at the given price is 72.
Given the following data:
Supply, S(p) = 5pDemand, D(p) = 120 - 4pPrice, P = $12.To determine the demand at the given price:
First of all, we would calculate the quantity of supply by substituting the value of price (P).
For supply:
[tex]S(p) = 5p\\\\S(p) = 5(12)[/tex]
S(p) = 60
For demand:
[tex]D(p) = 120 - 4p\\\\D(p) = 120 - 4(12)\\\\D(p) = 120 - 48[/tex]
D(p) = 72
Read more: https://brainly.com/question/18956645
The coordinates of the vertices of the triangle shown are A(2, 13), B(10, 5) and C(12, 14). What is the length of segment AB in units?
9514 1404 393
Answer:
8√2 units
Step-by-step explanation:
The distance formula is useful.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((10 -2)² +(5 -13)²) = √(64 +64)
d = 8√2
The length of AB is 8√2 units.
Which expression is equivalent to the expression 6(-2n + 7) - 3(5n + 9)?
10,500 Rounded to the nearest hundred
Answer:
um I think its already rounded to the nearest hundred. 10,500
Step-by-step explanation:
if rounded to the nearest THOUSAND it would be 11,000
please help I'll give brainliest
Answer:
57.5
Step-by-step explanation:
2x+5=120
2x=120-5=115
x=115/2=57.5
2
In 2002, there were 450 households in the city of Klean that recycled. Each year since 2002, the number of
households that recycle has grown by 8%. Write a function to represent the number of households
in Klean that recycle x years since 2002.
Answer:
450 x 1.08 ^ X = N
Step-by-step explanation:
Since in 2002, there were 450 households in the city of Klean that recycled, and each year since 2002, the number of households that recycle has grown by 8%, to write a function to represent the number of households in Klean that recycle X years since 2002 the following mathematical reasoning should be raised:
450 (initial number) x 1.08 (8% is added to the initial number) ^ X (years) = Number of households that recycle
450 x 1.08 ^ X = N
Thus, for example, if said number were calculated in 2007, that is, 5 years after 2002, the equation would apply as follows:
450 x 1.08 ^ 5 = N
450 x 1.4693 = N
661.20 = N
I’ll give BRAINLY I just need help
Answer:
[tex]3x - 8 = 2x + 12 \\ x = 12 + 8 = 20 \\ 180 - 2x - 12 = y \\ y = 180 - 40 - 12 = 128[/tex]
The following table represents the highest educational attainment of all adult residents in a certain town. If a resident who is 30-49 years old is chosen at random, what is the probability that they have completed a bachelor's degree and no more? Round your answer to the nearest thousandth.
Answer:
If a resident who is 30-49 years old is chosen at random, the probability that they have completed a bachelor's degree and no more is 29.13%.
Step-by-step explanation:
Taking into account the educational table provided, if a resident who is 30-49 years old is chosen at random, to determine what is the probability that they have completed a bachelor's degree and no more the following calculation must be performed:
30-39 Bachelor's degree = 1576
40-49 Bachelor's degree = 443
30-39 Total = 4062
40-49 Total = 2869
4062 + 2869 = 100
1576 + 443 = X
6931 = 100
2019 = X
2019 x 100/6931 = X
201900/6931 = X
29,129 = X
Therefore, if a resident who is 30-49 years old is chosen at random, the probability that they have completed a bachelor's degree and no more is 29.13%.
Answer:
0.296
Step-by-step explanation:
Have completed bachelor’s degree: 1008
Age 30-39: 3407
Probability : [tex]\frac{1008}{3407}[/tex]
≈0.296
Find the area of the figure. Round your answer to the nearest tenth :)
Answer:
6
Step-by-step explanation:
Write an
equation for two
angles a and b
that are
supplementary
Answer:
The correct option is the 1st option
a+b=180 degrees.
Ashley had $14.80. She spent $2.60 on lunch, then
brother gave her the $6 he owed her. What does she
now?
$11.40
$6.20
$18.20
$23.40
Answer: $18.20
Step-by-step explanation:
14.80-2.60 is 12.20.
her brother gives her 6 dollars
12.20+6 is 18.20, which that is the answer.
Answer:
18.20
Step-by-step explanation:
I got this because she got 6 making her total 20.80 then I subtracted what she spent for lunch
Lucy bought 5 pounds of flour for $3.
How many dollars did she pay per pound of flour?
Answer:
15
Step-by-step explanation:
5*3=15
Jose bought a 10-pound bag of food for his dog.
He fed his dog one-half of a pound of dog food
each day. Which equation is used to determine,
y, the amount of dog food that remains at the
end of each day, x?
The answer choices are on the top. Also please don’t send me links :) <3
Answer:
B
Step-by-step explanation:
so your starting value (10) is not going to have the x by it. instead he is feeding his dog so it will be subtracted from.
x is the number of days he can feed his dog. this will be mulitplied with something.
0.5 is how much he feeds his dog each day. this will be times the number of days or x.
so it makes your answer [tex]y=10-0.5x[/tex]
In APQR, what is the m2Q? Enter your answer in the box.
Answer:
m<Q = 105
Step-by-step explanation:
All triangle angles add up to 180:
11x - 5 + 6x + 5 + x = 180
18x = 180
x = 10
m<Q:
11x - 5
11(10) - 5
110 - 5
105
192 divided by 2304 i really need help with this
Answer:
12
Step-by-step explanation:
6 times the number of waiters at a restaurant was 6 less than the number of
customers in the restaurant. The number of waiters was 3. How many customers
were there?
Answer:
12
Step-by-step explanation:
6x3-6=12
Answer:
12 customers
Step-by-step explanation:
6*3=18
18-6=12
So, there were 12 customers
:)
Which expression is equivalent to 3(x + 4)?
Answer:
3x + 12
Step-by-step explanation:
Use the distributive property.
3(x + 4) = 3 * x + 3 * 4 = 3x + 12
Answer: 3x + 12
Answer:
3x+12
Step-by-step explanation:
QUICK BEING TIMED
If 2 inches on a map represents 25 miles, how many inches would represent 225 miles?
Answer:18
Step-by-step explanation:
18 inches represent 225 miles.
What is Proportion?Proportions are defined as the concept where two or more ratios are set to be equal to each other.
Suppose we have two ratio p : q and r : s.
If both these ratios are proportional, then we can write it as p: q : : r : s.
This is same as p : q = r : s or p/q = r/s
Given that,
2 inches on a map represents 25 miles.
We have to calculate the value of inches that correspond to 225 miles.
Let x be the unknown value of inches that correspond to 225 miles.
Using proportional concept,
2 : 25 = x : 225
This can also be written as,
2 / 25 = x / 225
Cross multiplying,
2 × 225 = 25 x
x = (2 × 225) / 25
x = 18
Hence the value of the unknown inch is 18 inches.
To learn more about Proportions, click on the link given below :
https://brainly.com/question/29774220
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Which container holds gallons? A fish tank A glass of milk A salt container An eyedropper
Answer:
The answer is a fish tank
Step-by-step explanation:
Answer:
A fish tank
Explain:
A glass of milk is about 0.0625 gal
A salt container is about 0.03125 gal
And a eyedropper holds 0.00026417205235815 gal
Can someone please tell me how to do this
Answer:
no solution
Step-by-step explanation:
both sides = -2 when we substitute n for 2 so
therefore it doesn’t have solution or doesn’t satisfy the inequality
Cuz n should be > not equal
What is the radius of a circle with the equation x2 + y2 +6x – 2y+3 = 0;
Round your answer to the nearest thousandth.
Answer:
can you help me
Step-by-step explanation:
Write \sqrt{-27}
−27
in simplest radical form.
Answer:
im not sure if sqrt of -27 by it self or over -27 but anyways.
sqrt{-27} = 3i(sqrt)3
sqrt{-37}/(-27) = - i(sqrt)3/9
A hair stylist offers clients haircuts and coloring treatments . On Monday she did 5 haircuts and 3 color treatments and earned $340. On Wednesday , she did 2 haircuts and 6 color treatments and earned $400 Write and solve a system of equations to determine the amount the stylist earns for each haircut h and each color treatment , c System
Answer:
16.00
Step-by-step explanation:
Mr. Jones rents an office in a building for $600 a month. His office has an area of 1,250 square
feet. At the same rate how much will it cost to rent an office with an area of 3,000 square feet?
Record your answer on the grid below. Be sure to use the correct place value.
PLEASE HURRY AND SHOW WORK!!
Answer:
Step-by-step explanation:
1300
Find the distance between the two numbers on the number
line.
Answer:
3 1/2
Step-by-step explanation:
|-7| - |-3 1/2| = 3 1/2
Question 6 of 10
What is the midpoint of the segment shown below?
10 --
(3,5)
O A. (7)
(2.2)
B. (5,7)
10
O C. (5.3)
O D. (7/ 2 )
SUBMI
Answer:
(2.5 , 3.5)
Step-by-step explanation:
We can use the midpoint formula . Here the points are , (2,2) and (3,5) .
• Using Midpoint Formula :-
⇒ M = { (x1 + x2)/2 , (y1 + y2)/2 }
⇒ M = ( 2+3/2 , 5+2/2 )
⇒ M = ( 5/2 , 7/2 )
⇒ M = ( 2.5 , 3.5 )
Hence the midpoint is (2.5 , 3.5)is there a outlier in the data set? Explain your reasoning.
Answer:
yes
Step-by-step explanation: