Answer:
140
Step-by-step explanation:
If 8 out of 10 are carrying a briefcase, that means 2 out of 10 are not carrying one.
Use a proportion to find how many don't have a briefcase with 700 people
Let x represent the number of people without a briefcase:
[tex]\frac{2}{10}[/tex] = [tex]\frac{x}{700}[/tex]
Cross multiply and solve for x
10x = 1400
x = 140
So, 140 people do not have a briefcase
Answer:
140
Step-by-step explanation:
8/10 people, there's 700 people
10 multiplied by 70 =700.
2 people dont have briefcases = 2 times 70=140
The midpoint of a segment is 19,5) and one of the endpoints is (13,81 What are the coordinates of the otherendpoint
Answer:
[tex](25,-71)[/tex]
Step-by-step explanation:
Given
[tex](x,y) = (19,5)[/tex] --- midpoint
[tex](x_1,y_1) = (13,81)[/tex] --- end 1
Required
The other endpoint
Using midpoint formula, we have:
[tex](x,y) = 0.5 * [x_1 + x_2, y_1 + y_2][/tex]
So, we have:
[tex](19,5) = 0.5 * [13 + x_2, 81 + y_2][/tex]
Multiply both sides by 2
[tex]2 * (19,5) = 2 * 0.5 * [13 + x_2, 81 + y_2][/tex]
[tex](38,10) = [13 + x_2, 81 + y_2][/tex]
By comparison:
[tex]x_2 + 13 = 38[/tex] and [tex]y_2 + 81 = 10[/tex]
So:
[tex]x_2 = 38 - 13[/tex]
[tex]x_2 = 25[/tex]
and
[tex]y_2 = 10 - 81[/tex]
[tex]y_2 = - 71[/tex]
Henc, the other endpoint is:
[tex](25,-71)[/tex]
The equation y=x^2-12x+45 models the number of books y sold in a bookstore x days after an award-winning author appeared at an autograph-signing reception.
How many books were sold at the autograph session?
What is the minimum nunber of books sold?
What day did that occur?
How many books were sold on day fifteen?
Answer:
3.2
Step-by-step explanation:
Answer:
Answer: The first day the author reaches 100 days is on day 16.
To solve this problem, you could use a graphing calculator to graph the given equation. Then, determine when this line crosses 100. It crosses when x = 15.539. Therefore, we would have to round up to 16 so it is at least 100.
You could use the quadratic equation to solve: 100 = x^2 -12x + 45
Either you will get 16. If you use the quadratic formula, make sure to only use the positive answer.
for the student store, sienna bought six packs of apple juice at $3.20 per pack. she sells each juice box at $.75 each. if she sells all the juice boxes in one day, how much profit will she get from selling these apple juice?
Answer:
Her profit would be $1.30
39, 87, 72, 88, 75, 87, 15, 53, 53
What is the median
Answer:
72 or 75
Step-by-step explanation:
If we are going in order then the median would be 72.
If we are going by what you posted, then it would be 75.
You were asking about the mean, so I though I would just add it in here.
So basically, the mean is just where you add up all the numbers, and then divide them by how many numbers you have.
For your problem, this is 39+87+72+88+75+87+15+53+53. This equals 569.
Now, lets count how many numbers we added: 1...2...3...4...5...6...7...8...9.
Ok, so lets divide the 569 by 9. This should get you 63.222...
That is your mean.
Does anyone know what the answer please?
Answer:
<1 = 73
Step-by-step explanation:
All triangle interior angles add up to 180 so:
<1 + 55 + 52 = 180
<1 + 107 = 180
<1 = 180 - 107
<1 = 73
Plutonium-240 decays according to the function e(t)=Q e-k where 0 represents the quantity remaining after t years and k is the decay constant, 0.00011... To the nearest 10 years, how long will it take 27 grams of plutonium-240 to decay to 9 grams? A. 1.44 years B. 2,100 years C. 9,990 years D. 18,900 years
Answer: 9,990
Step-by-step explanation:
please help me!!!! ily if u dooooo
1. Find the area
13 ft
3 ft
Answer: you just need to do A=bh
Step-by-step explanation:
So you need to multiply the base by the height
which of the following could be the graph of the line y=3x-2?
Answer:
D should be the right answer
Answer:
C. IS THE CORRECT ANSWER
Step-by-step explanation:
I need help ASAP i will give brainlist
Answer:
M
Step-by-step explanation:
Answer:
Point M
Step-by-step explanation:
Each line represents 0.05 so M would best represent 1/3
The top of a coffee table is in the shape of a rectangle. The length of the top of the coffee table is 3.5 feet and the area is 10.5 square feet. What is the width of the coffee table?
Answer:3
Hope this helps
The price of the stereo was $96 the tax rate was 6% what was the tax
Answer:
101.76
Step-by-step explanation:
Please help me on this.
Answer:
D
Step-by-step explanation:
1. A baker bought 12 pounds of flour. He used 5/8 of the flour. How many pounds of flour are left?
Answer:
7 1/2 pounds
Step-by-step explanation:
12/1 x 5/8 = 60/8 = 7 4/8 = 7 1/2
Help please and thank you if you do all of them I will mark you as Brainliest
rounded to tens: 30,190, 5,010 and 20
rounded to tenths: 62.6, 1.1, 0.0, and 270.6
rounded to hundredths: 0.12, and 98.51
Evaluate the expression when a = 6 and x = -3.
-a+7x
Answer:
-27
Step-by-step explanation:
The equation -a+7x, when plugged in shows -6+7*(-3).
This gives us -6-21 which is -27.
By the way can you follow me on Brainly?
Thanks!
show your work please
Answer:
-0.375
Step-by-step explanation:
just convert the expression to get -0.375
hope this helps
There are 870 people attending a conference.if 8.9% were canda how many people is this
Answer:
77.43
Step-by-step explanation:
Answer:
77.43 people were canda
Step-by-step explanation:
To find 8.9% of 870, we first turn 8.9% into a decimal. We can do this by shifting the decimal point two places to the left. This gives us 0.089. Now, we multiply this decimal by 870. Our product, 77.43, is our final answer.
What is 0.0475 converted to a percentage
Answer:
0.0475 = 4.75%
Step-by-step explanation:
Answer:
4.75%
Step-by-step explanation:
Look at the decimal number 0.0475 as 0.0475 out of one. Furthermore, percent means per hundred. So the task is to convert 0.0475 out of one to 0.0475 out of one hundred.
The equation to solve the problem is displayed below where x is the 0.0475 as a percentage.
[tex]\frac{0.0475}{1}[/tex]=[tex]\frac{x}{100}[/tex]
We solve the equation for x above by first multiplying each side by one and then multiplying each side by one hundred. Thus, the answer to 0.0475 as a percentage is: 4.75%
PLEASE HELP ASAPPPP!!
question: write in standard form.
2x^2+x^3-3+4x^5
Answer:
+4X^5+X^3+2X^2-3
Step-by-step explanation:
Hope this helps :*
What is 2+2???? very hard question I know that's why I need help.
Answer:
4
Step-by-step explanation:
Answer:
yes to get this answer u need to use ur brain
take 2 and 2
then see how many are there in all so it's 4
So u should mark me as brainlist
If Amelia wants to make the maximum amount of money working only 22 hours per week, which company should she work for? Explain your answer. Company A: Using linear regression models from both data sets, she determines that it pays about $14 more. Company A: Using quadratic regression models from both data sets, she determines that it pays about $5 more. Company B: Using linear regression models from both data sets, she determines that it pays about $10 more. Company B: Using exponential regression models from both data sets, she determines that it pays about $8 more.
Answer:
B
Step-by-step explanation:
Answer:
Company A
Step-by-step explanation:
She should work for company A because they pay the most. Also because she would earn $308 during 22 hours. Hopes this helps! :)
A quiz consists of 570 true or false questions. If the student guesses on each question, what is the mean number of correct answers?
Answer:
285
Step-by-step explanation:
570/2=285
true or false means theres a 1/2 possibility you guess right thats why you divide by 2
The mean number of correct answers to 570 true or false questions will be 285.
What is the expected value?In parameter estimation, the expected value is an application of the weighted sum. Informally, the expected value is the simple average of a considerable number of individually determined outcomes of a randomly picked variable.
The expected value is given below.
E(x) = np
Where n is the number of samples and p is the probability.
For the true or false, the probability of getting correct is given as,
p = 1/2
There are 570 true or false questions in a quiz. If the pupil guesses for each inquiry. Then the expected value is given as,
E = 570 x (1/2)
E = 285
The mean number of correct answers will be 285.
More about the expected value link is given below.
https://brainly.com/question/13945225
#SPJ2
5. a) Which figure is the mapping diagram of the relation
shown?
b) is the relation a function
Please help
Answer:
b, since the others have the input and output on the wrong sides
Elyssa bought a rectangular aquarium. The measurements, in feet (ft), are shown below.
How much water will it take to fill the aquarium
6.If Addison types at a constant rate of 2 pages per hour, how many hours will it take to
type a paper that is 5 pages long?Immersive Reader
(20 Points)
0.4 hour
2.5 hours
5 hours
10 hours
Answer:
2.5 hours
Step-by-step explanation
it takes 1/2 a hour to write one page so do
5 x 1/2 which is 2.5 since there are 5 pages
Find x when f (x)= 25
Mrs. Hagan measured the height, in inches, of all the girls in her PE class. She recorded her results in
the following list.
63, 60,67, 62,58, 63, 68,
59, 62, 65,56, 63 59, 62,
58
13. Determine the 5-number summary and make a box-and-whisker plot for the data set.
14. Between what heights are the middle 50% of the girls in Mrs. Hagan's PE class?
Answer:
Step-by-step explanation:
5 number summery
Minimum: 56
Maximum: 68
Median: 62
First quartile: 59
Third quartile: 63
HELP ME PLS I WILL GIVE 25 POINTS!!
Answer:
B
Step-by-step explanation:
Hope I helped! I tried my best.
Answer:
B
Step-by-step explanation:
Find the measure of angles T and V.
W is 90
Full equation
90+ 2x +3x =180
5x = 180-90
5x = 90
X= 90/5
X= 18
T = 3 (18)
T= 54
V=2(18)
=36
