Answer:
0.1025641026
Step-by-step explanation:
-8/12×-2/13
=16/156
=0.1025641026
Answer:
4/39
Step-by-step explanation:
-8/12 x -2/13
-2/3 (-2/13)
-2(-2) / 3x13
4/39
Help me. Im actually so serious
Answer:
Answer in explanation
Step-by-step explanation:
Linear Modeling
It's given a situation where a student has two summer jobs and wants to collect $750 to pay for a down payment on a car. He gets paid $25 for each lawn mowed and $15 for each pool cleaned
Create a model in standard formLet
x = number of lawns mowed
y = number of pools cleaned
He wants to make $750, thus:
25x + 15 y = 750
Dividing by 5, we have the model that represents the linear relationship:
5x + 3y = 150
Identify the x-interceptThe x-intercept can be found by setting y=0:
5x + 3(0) = 150
5x = 150
Dividing by 5:
x = 150/5 = 30
x = 30
This represents the situation where the student gets his $750 by only mowing 30 lawns, no pools cleaned.
Identify the y-interceptThe y-intercept can be found by setting x =0:
5(0) + 3y = 150
3y = 150
y = 150/3 = 50
y = 50
This represents the situation where the student gets his $750 by only cleaning 50 pools, no lawns mowed.
Identify two combinations that are solutions to the equationStarting from the basic equation
5x + 3y = 150
We can give x some arbitrary value (less than 30) and find the value for y.
For example, for x=12
5*12 + 3y = 150
60 + 3y = 150
3y = 150 - 60 = 90
y = 90/3=30
This solution corresponds to the case where the student gets $750 by mowing 12 lawns and cleaning 30 pools.
For example, for x=21
5*21 + 3y = 150
105 + 3y = 150
3y = 150 - 105 = 45
y = 45/3=15
This solution corresponds to the case where the student gets $750 by mowing 21 lawns and cleaning 15 pools.
What is the exact product of 1.5 3.24
Answer:
00000
Step-by-step explanation:
poop
An SRS of 2,500 individuals was taken from a large city to estimate the percentage of city residents with a graduate degree. 555 people in the sample had a graduate degree. The percentage of individuals in the city with a graduate degree is estimated as 22.2%. The estimated standard error is closest to:_______a. 1%b. 10% c. 0.1%
Answer:
The option is b
Step-by-step explanation:
From the question we are told that
The sample size is n = 2500
The number with a graduate degree is k = 555
The sample proportion is [tex]\^ p = 0.222[/tex]
Generally the standard error is mathematically represented as
[tex]SE = \sqrt{\frac{\^ p (1- \^ p )}{n} }[/tex]
=> [tex]SE = \sqrt{\frac{0.222 (1- 0.22 )}{2500 } }[/tex]
=> [tex]SE = 0.010[/tex]
Converting to percentage
[tex]SE = 0.010 * 100[/tex]
=> [tex]SE =10\%[/tex]
A random sample of 16 ATM transactions at the Last National Bank of Flat Rock revealed a mean transaction time of 2.8 minutes with a standard deviation of 1.2 minutes. The width (in minutes) of the 95 percent confidence interval for the true mean transaction time is plus/minus (to three decimal places):
Answer:
The width is [tex]W = 1.2786[/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 16
The mean time is [tex]\= x = 2.8 \ minute[/tex]
The standard deviation is [tex]s = 1.2 \ minutes[/tex]
Generally the degree of freedom is mathematically represented as
[tex]df = n - 1[/tex]
=> [tex]df = 16 - 1[/tex]
=> [tex]df = 15[/tex]
From the question we are told the confidence level is 95% , hence the level of significance is
[tex]\alpha = (100 - 95 ) \%[/tex]
=> [tex]\alpha = 0.05[/tex]
Generally from the t distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] at a degree of freedom of df = 15 is
[tex]t_{\frac{\alpha }{2} , 15 } = 2.131[/tex]
Generally the margin of error is mathematically represented as
[tex]E = t_{\frac{\alpha }{2}, 15 } * \frac{\sigma }{\sqrt{n} }[/tex]
=> [tex]E = 2.131 * \frac{ 1.2 }{\sqrt{16} }[/tex]
=> [tex]E = 0.6393 [/tex]
Generally the width the confidence 95% confidence interval
[tex]W = 2 * E[/tex]
=> [tex]W = 2 * 0.6393[/tex]
=> [tex]W = 1.2786[/tex]
Hi guys im here for another question
Can you give me the answers?
Hi i'm here to help the answer is 78 please mark me brainliest
Please help anything is appreciated
Answer:
q = -2
Step-by-step explanation:
Constant = whole number
If the two lines are parallel the slopes would be equal.
So if the first line is y = -2x + 5/3
The the second line would become y = -2x + 6.
If q becomes -2, it will be a constant and the two lines will also be parallel
The sum of two numbers is 9. Their difference is 21
Answer:
(15, -6)
Step-by-step explanation:
x + y = 9
x - y = 21
x = 9 - y
plug in x into second equation
9 - y - y = 21
9 - 2y = 21
-2y = 12
y = -6
plug in y.
x - (-6) = 21
x + 6 = 21
x = 15
check
15 + (-6) = 9
15 - (-6) = 21
You have decided to pursue a career in nursing. You are willing to relocate based on salary differences. The states you are willing to relocate to have the following average hourly wages: NY = $33.55, MA = $33.37, CA = $31.54, and FL $24.57. What is the mean salary for these options?
Answer:
$30.76
Step-by-step explanation:
Add up all data values to get the sum
Count the number of values in your data set
Divide the sum by the count
Which of the following is nat a property of parallelogram
Answer:
The four angles add up to 180° is not a property of parallelogram
Tyra's family is spending the afternoon in Millersville. They plan to see a movie and then explore
the town. The movie will cost the family $36, and parking costs $4 per hour.
How long will the family be able to spend in Millersville if they want to spend less than $60 and
they don't have any other expenses?
Follow the steps to answer this question.
1. Write an inequality that shows that Tyra's family spends less than their limit. Explain how you
wrote the inequality, and define any variables used.
2. Solve your inequality. Show your work. What does your solution mean?
Answer: 36+4h=60
36+4h-36=60-36
4h=24
4h÷4=24÷4
h=6
So, after the move they can spend 6 hours there. (6×4=24, 24+36=60, they will spend $60 if they spend 6 hours there, $56 if they spend 5 hours there and don't want to spend $60).
Step-by-step explanation:
what is the square root of 20
Answer:
It is 4.472135955, which simplifies to 4.47
Step-by-step explanation:
Step-by-step explanation: The square root of 20 is not a perfect square.
In other words, it's impossible to find a whole number
times itself that gives us a product of 20.
However, we can simplify it.
20 breaks down into 2 x 10 and 10 breaks down into 2 x 5.
Since the 2's pair up as factors of 20, a 2 comes out of the radical.
Since the 5 doesn't pair up, it stays inside.
So our answer is 2√5.
Janelle rounded the number 87,240 to 87,000. What nearest place value was the number rounded to?
Last month, Mr. Littleton sold 70, 400 eggs. This month, he sold 5, 934 fewer eggs than last month. a. On paper, draw a tape diagram to represent the number of eggs sold in the two months combined. b. Use rounding to estimate the number of eggs sold in the two months combined. Enter your estimate below. c. Use the standard algorithm to find the exact number of eggs sold in the two months combined. Enter your answer below. About eggs were sold in the two months combined. Exactly eggs were sold in the two months combined.
1. Matilde collects blankets for an animal shelter. She fills 9 boxes. There are 10 blankets in each box. How many blankets does Matilde collect for the shelter? *
1 point
A. 9 + 9 = 18 blankets
B. 9 x 10 = 90 blankets
C. 10 + 9 = 19 blankets
D. 10 x 9 = 90 blanket
Answer:
B and D
Step-by-step explanation:
9x10=90
10x9=90
If f(x)=-4x+6 fins f(-3)+8
Answer:
f(x) = 26
Step-by-step explanation:
Evaluate the Function
f (x) = −4x + 6 f (−3) + 8
Replace the variable x with −3 in the expression.
f (−3) = −4 ⋅ −3 + 6
Simplify (−4 ⋅ −3 + 6) + 8
Multiply −4 by −3.
12 + 6 + 8
Add 12 and 6.
18 + 8
Add 18 and 8.
26
hope this helps :)
Salvatore purchased several magazines for $2 each and books for $3 each. If he spent $160 on a total of 60 books and magazines altogether, what would be the number magazines that Salvatore purchased?
Answer:
30
Step-by-step explanation:
If the magazines and books together add up to a total of 60 books, then he bought 30 magazines and 30 books.
2
Solve the following: +3=19
y= 2
Answer: 128
Step-by-step explanation:
Please help me answer this questions
Answer:
1= 6
2= 1
3= 2
4= -0.6
5= 0>2
Step-by-step explanation:
i think i am correct. the value is 0 so don't be confuse in last one
On a map, 3/4 inch represents 14 miles. If two cities are 42 miles apart, how far apart are they on the map?
Answer:
9/4 inches
Step-by-step explanation:
42 is 3x more than 14. therefore, what is 3x more than 3/4 is 9/4
Answer:
9/4
Step-by-step explanation:
14 times 3 = 42
3/4 times 3 = 2.25
2.25 in fraction form is 9/4
What is the proportion
1 1/8 = g - 4 2/5, what does g equal?
Answer:
Step-by-step explanation:
It might help to use decimals
1 1/8 = 1.125
4 2/5 = 4.4
Add these together
1.125 + 4.4 = 5.525 That's the correct answer, but likely not in the form you wanted.
1 1/8 = 9/8
4 2/5 = 22/5
9/8 + 22/5
multiply through by the Lowest Common Denominator
9*5/40 + 22*8/40 =
45/40 + 176/40
221/40
5.525
5 21/40
You get the fraction by multiplying 40 * 0.525 which is 21
So you can express 0.525 as 21 / 40
I need help with this plz bro. Plz
Answer:
I only got B
Step-by-step explanation:
Put the x-values into the equation and solve for each.
On Monday, a restaurant served 54 diet sodas. This was 75% of the total number of sodas served that day. How many sodas did the restaurant serve on Monday?
A square-shaped warehouse has a floor area of 12,769 square feet. The length of one of the walls is ___ feet.
Select one:
a. 100
b. 23.37
c. 127.69
d. 113
e. none of these
Answer:
113 (d)
Step-by-step explanation:
Since the room is square-shaped, you square root the area (12,769) to find the length of each wall. You will get the answer 113. To check this answer multiply 113 by 113 and make sure you get the correct area; it works, so you know the answer is D.
can I have help I would deeply appreciate it
Answer:
its blurry add my sn$p kevinscoolrevi7 and I got u
86 rounded to the nearest whole number
Answer:
90
Step-by-step explanation:
Answer:
90
Step-by-step explanation:
[tex]\frac{3}{9}[/tex] + (-[tex]\frac{6}{9\\})[/tex] explain pls
Answer:-3/9
Step-by-step explanation:
When you adding or subtracting fractions they need to have the same denominator... which in the question they do! :) after you get your denominator the same you add the second numerator from the first one, in this one it’s 3 + (-6). Oh no a negative! But don’t worry when you add a negative it’s just like subtracting a regular number, so you really are just doing 3-6 which is -3 then you just put that over the denominator you had before, and you get -3/9
How many 12s are in 2? 4
Answer: 2 times 6 is 12 4 times 3 is 12 so its 6
Answer:
l would think 6
Step-by-step explanation:
Because 12%2 is 6
A ladder 10 ft long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 0.8 ft/s, how fast (in rad/s) is the angle (in radians) between the ladder and the ground changing when the bottom of the ladder is 6 ft from the wall?
Answer:
Step-by-step explanation:
480 because you multipy 4 times 8 and than you mulpyy 48 times 10 and that is how i got the number 480.
Answer:
480 because you multiply 4 times 8 and then you multiply 48 times 10 and that is how I got the number 480.
Please help me thank you I’ll mark Brainly
Answer:
C should be your answer if I'm not right then forgive me please.
Step-by-step explanation:
Answer:
B and D
Step-by-step explanation: