There were 77% of the entries with a score less than 68. Therefore, the correct answer is option A.
Given that, at a recent contest with 1,000 entries, a score of 68 was at the 77th percentile of the distribution of all the scores.
A score X being in the xth percent of a distribution means that x% of the scores are below X and 100 – x% of the scores are above X.
In this question, we have that:
A score of 68 is in the 77th percentile of the distribution.
This means that 77% of the scores are below 68, and 100 – 77 = 23% of the scores are above 68.
Therefore, the correct answer is option A.
To learn more about the normal distribution visit:
https://brainly.com/question/14916937.
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Most people celebrating the new year will spend no more than $200. Write the amount that the average person will spend as an inequality, where X is the amount of personal spend.
Answer:
10
Step-by-step explanation:
if the orginal quantity is 12 and the new qyantity is 15 what is the percent increase
Answer:
25% increase
Step-by-step explanation:
So I would set this up as a proportion
15 x
12 100
So begin by cross multiplying-
15 x 100 = 1500
And then divide
1500/12 = 125
Because 100% is the original, subtract that
Write all the factors of 21 .
Use commas to separate them.
Answer:
1, 3, 7, 21!
Step-by-step explanation:
Answer:
1, 3, 7, 21 The factors of 21 are 1, 3, 7, 21.
A train travels 120 miles in 3 hours. At this same rate, how many miles will it travel in 8 hours?
320 miles
500 miles
450 miles
400 miles
PLEASE HELP
Pls help me :'(
1) Solve the following system of equations by GRAPHING. Remember to check!
y = –x + 1
Which is true about the triangles’ perimeters?
2 triangles labeled Triangle A and Triangle B.
Triangle A has 3 sides, each labeled 9 kilometers.
Triangle B's base is labeled 15 kilometers. Its other 2 sides are each labeled 8 kilometers.
The perimeter of Triangle A is equal to the perimeter of Triangle B. The perimeter of Triangle A is 3 kilometers less than the perimeter of Triangle B. The perimeter of Triangle A is 4 kilometers less than the perimeter of Triangle B. The perimeter of Triangle A is 9 kilometers less than the perimeter of Triangle B.
Answer:
Step-by-step explanation:
let x be the common ratio / or scale factor
the sides of the triangle are
5x, 12x and 13x
sum of the sides defines perimeter
that is
5x + 12x + 13x = 15
30x = 15
x = 15/30
x = 0.5
The sides of the triangle are 0.5(5) = 2.5
0.5(12)=6
0.5(13) = 6.5
2.5, 6, 6.5 all in inches
What number makes the equation true?
Answer:
32
Step-by-step explanation:
the denominators are the same, so just add the two fractions on the right and subtract it from the answer on the left.
3500/7+210/7=3710/7
subtract 3710 from 3742
= 32
f(x) = 3r2 + 12x + 5
What is the value of the discriminant of f?
D
How many distinct real number zeros does
f(x) have?
Answer:
The value of the discriminant is 84.
i.e. b²- 4ac = 84
As
b²- 4ac > 0
Therefore, there are two distinct real number zeros.
Step-by-step explanation:
We know that the discriminant of the quadratic equation ax²+bx+c=0 is equal to b²- 4ac.
We also know that:
When b²- 4ac = 0 there is one real root.When b²- 4ac > 0 there are two real roots.When b²- 4ac < 0 there are two complex roots.We are given
f(x) = 3x² + 12x + 5
comparing with the quadratic function ax²+bx+c=0
a = 3, b = 12, c = 5
Discriminant = b²- 4ac
= (12)²-4(3)(5) ∵ a = 3, b = 12, c = 5
= 144 - 60
= 84
Thus, the value of the discriminant is: 84
As
b²- 4ac > 0
Therefore, there are two distinct real number zeros.
In the class of 35 students, there are 5 more boys than the girls. How many boys are in the class
Answer:
20 boys
Step-by-step explanation:
by subtracting 5, the boys would be equal to the girls, so there are 15 girls. 15+5=20
Solution of -9=6m+15
Answer:
[tex]m = - 4[/tex]
Step-by-step explanation:
1. subtract 15 from both sides.
[tex] - 9 - 15 = 6m[/tex]
2. Simplify -9-15 to -24.
[tex] - 24 = 6m[/tex]
3. Divide both sides by 6.
[tex] - \frac{24}{6} = m[/tex]
4. Simplify 24/6 to 4.
[tex] - 4 = m[/tex]
5. Switch sides.
[tex]m = - 4[/tex]
Therefor, the answer is , m = -4
What is the equation of the line that passes through the point (2,0) and has a slope
of 5/2
Answer:
y = 5/2x - 5
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
If 3x + 7y = 12 and x-y= 1, then what is the value of 5x + 5y?
Answer:
14.
Step-by-step explanation:
3x + 7y = 12
x - y = 1 Multiply this by -3:
-3x + 3y = -3 Add this to equation 1:
0 + 10y = 9
so y = 9/10 = 0.9.
x - 0.9 = 1
x = 1.9.
So 5x + 5y = 5*1.9 + 5*0.9
= 14.
Enter the decimal as a percent.
0.811
Answer:
0.00811%
Step-by-step explanation:
.811/100 = 0.00811%
is it just me or is that europa person like rlly annoying bru,, they just keep deleting everybodies questions and answers smh.
Answer:
yeah ikr it gets annoying after awhile
3 cm 2 1/2 cm 2 1/2 cm
Answer: 18.75 cm
Step-by-step explanation:
I multiplyed 3 cm by 2 1/2 and 2 1/1 and got 18.75
Need help with all of these! (55 points!)
Answer:
Step-by-step explani belive you add it if it is improper then simplify hope it helps
There are 77 oranges in each box. How many oranges are in 33 boxes
Answer:
2541
Step-by-step explanation:
77 * 33 = 2541
Answer:
there are 2541 oranges in 33 boxes hope this helps have a nice day please give me brainliest :))
Step-by-step explanation:
ANSWER FREE BRINLIEST!! ANSWER THE TWOO CIRCLED ONES!!
Answer:
alright for the first one you set them equal o each other while for the second you do the same thing
first one:8
second one:5
Step-by-step explanation:
24/3 is x and x=8
for the second one
18+12 is 30 and 30/6 is 5so the second one is 5'
if you want me to clarify more please comment
Answer:
this was a while ago so i am just putting this answer so u can give the other dude brinliest
Step-by-step explanation:
PLZ HLP! You ask 125 randomly chosen students to name their favorite food. There are 1500 students in the school. Predict the number of students in the school whose favorite food is pizza.
58 people choose pizza.
36 people chose hamburger
14 people chose pasta
17 people chose other
Answer:
696
Step-by-step explanation:
58/125 = 46.4%
0.464 x 1500 = 696 people
A speed skater covered 1,484 meters in 106 seconds. Find the unit rate of speed in meters per second. guys...please help me...I am confuzzled!!
About 245 out of 500 students prefer walking instead of riding the bus to school. About what percent of the students prefer walking?
Answer:
49 percent
Step-by-step explanation:
So convert the fraction into a percentage
245/500= 49%
Is there a proportional relationship between number of sandwiches and the cost of the order? Explain how you know.
(In the picture are my answers so you guys can see them, but what I need to know is if they are proportional or not, and why.)
(20 points)
Answer:
CMER BOOOOOOOOOOOOOOOOOOOOOO
Step-by-step explanation:
8. There are 7 cars for every 5 trucks. If there are 21 cars, how
many trucks are there?
O a) 10
O b) 7
O c)15
O d) 62
Answer:
c)15
Step-by-step explanation:
21 divided by 7 is 3
5 times 3 is 15
Answer:
The answer is 15.
Step-by-step explanation:
that's the answer to me
q > d, if d = 3 is it true or false
70 POINTSSSS HELPPPP !
What is the area of the figure?
40 ft2
84 ft2
96 ft2
can't be determined
Q5. Asif is 5 years younger than Qasim. Four years later, Qasim will be twice as old as
Asif. Find their present ages.
Answer:
Age of Qasim = 6 year
Age of Asif = 1 year
Step-by-step explanation:
Let :
Age of Qasim = x
Age of Asif = x -5
After 4 years there age will be:
Age of Qasim = x+4
Age of Asif = x-5+4 = x-1
We are given: Four years later, Qasim will be twice as old as Asif.
Age of Qasim = 2 (Age of Asif)
x+4=2(x-1)
x+4=2x-2
2x-x=4+2
x=6
So, We get x = 6
The present ages will be:
Age of Qasim = x = 6 year
Age of Asif = x -5 = 6-5 = 1 year
PLEASE HELP .?.!.??.!
Answer:
I would say Mai
Step-by-step explanation:
So if you do the math like i did you would get 2 answers 10 and 0 so all you would have to do then for your question is figure out the math and you should be good to go. Also to me Mai wrote it in the way i would write it out.
Point X is located at (3, 2).
Point Y is located at (3, -8).
What is the distance from point X to Y?
Will Heart, thank, and give 5 stars. Brainlist isn't working at the moment because I gave too many.) :(
50.) Find the value of b so that 330_b= 226_b+5
To ensure that the mass of an average grain of rock salt stays the same, what should you multiply the first factor 1.2 by so that 10 negative 2 becomes 10 negative 4
Answer:
Step-by-step explanation:
[tex]1.2 X 100=120.\\[/tex]
Answer:
The mass of an average grain of rock salt is 1.2 x 10^-2. In part A, you multiplied 10^-2 by 10^-2 to get 10^-4. So, multiply the first factor, 1.2 , by 10^2, or 100.
The first factor will then be 1.2 x 100 = 120.
Step-by-step explanation:
Edmentum answer
