The histogram shows the performance of students on a midterm test.
15
Select the correct answer.
How many students answered fewer than 20 questions correctly?
A.
8
B.
10
C.
12
D.
14
Reset Next
Answers
Answer:
12 kids
Step-by-step explanation:
First look at the bars that are behind 20 as you can see 10 and 0 are behind 20. Then you count the numbers on the left up on the bars. 0 has 8 kids, and 10 has 4 kids
Related Questions
I don't get how to explain the rigid motions. Can somebody please help me.
Answers
Answer:
The triangle moved from the points, (-4, 4), (-4, 1), (-1, 1), and (-4, 4) to the points (3, 3), (0, 3), (0, 1) and (3, 3) without. changing shape or size.
You could say, "The triangle rotated 180° and translated 4 x-values(?) to the right"
Andre was trying to write 7⁷/ 7⁻³ with a single exponent and wrote 7⁷/ 7⁻³ = 7⁴⁻³ = 7¹ Explain to Andre what his mistake was and what the answer should be.
Answers
Sarah earns $10 each week for weeding the garden. If she saves all of
he money, how many weeks will it take her to save up $150?
(Draw a picture.)
(Write and solve an equation.)
1044-=15
Write the sentence as an equation.
248 more than the quantity 78 times a equals a
Answers
(BRAINLIEST IF CORRECT ANSWER) When you roast coffee, it loses 12% of its weight. How much fresh coffee do you need to order to get 14 2/25 lb of roasted coffee?
Answers
==========================================================
Explanation:
14 & 2/25 = 14 + 2/25 = 14 + 0.08 = 14.08
The mixed number 14 & 2/25 is the same as the decimal 14.08
The goal is to end up with 14.08 pounds of coffee.
Let x be the starting amount of coffee, in pounds. It will decrease to 14.08 pounds.
We start with x and decrease by 12%. So we are computing this expression
x - 12% of x = 1x - 0.12x = (1-0.12)x = 0.88x = 88% of x
We can see that if we lose 12%, we keep the remaining 88%
The 0.88x is the final weight.
Set 0.88x equal to the goal of 14.08 and solve for x.
0.88x = 14.08
x = (14.08)/(0.88)
x = 16
You'll need to start off with 16 pounds of coffee if you want to end up with 14.08 pounds after losing that 12%
-------------------
Check:
12% of 16 = 0.12*16 = 1.92
16 - 1.92 = 14.08
The answer is confirmed.
You need to order approximately 4.15 pounds of fresh coffee to get 14 2/25 pounds of roasted coffee after accounting for the 12% weight loss during roasting.
To find out how much fresh coffee you need to order to get 14 2/25 lb of roasted coffee, you'll need to account for the 12% weight loss during the roasting process.
Let's assume "x" represents the amount of fresh coffee (in pounds) you need to order. When this fresh coffee is roasted, it will lose 12% of its weight, leaving you with 100% - 12% = 88% of the original weight as roasted coffee.
Now, set up a proportion to find "x":
(88/100) * x = 14 2/25 lb
First, convert the mixed number 14 2/25 to an improper fraction. It becomes (364/25) lb.
Now, solve the equation for "x":
(88/100) * x = 364/25
To eliminate the fraction, you can multiply both sides of the equation by the reciprocal of (88/100), which is (100/88):
x = (364/25) * (100/88)
Now, simplify the expression:
x = 4.15 lb (rounded to two decimal places)
To learn more about proportion click on,
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What is the slope of a line that contains the points, (2x, y) and (x, 37)
Answers
Answer:
I think it's 1/2 but I haven't done a problem like this in awhile so I'm not sure
Given f(x) = 3x+5 and g(x) = -8x-10
A) Find f(x)+g(x)
B) Find f(x)-g(x)
C) Find f(x)*g(x)
D) Find f(x)/g(x)
E) Determine which of the above are polynomials.
Answers
Answer:
Option A
Step-by-step explanation:
[tex]\frac{F (x)3x + 5 }{g (x) 2 (x +5) }[/tex]
Could somebody please help me find the answers for 'x' for these pictures?
**Please let me know which one you solved along with the answer**
Answers
Answer:
Pic 1: [tex]x=31[/tex]
Pic 2: [tex]x=20[/tex]
Step-by-step explanation:
Picture 1:
[tex]2x+x-3=90\\3x-3=90\\3x=93\\x=31[/tex]
First, add the 2x and x together for 3x
Then add 3 to both sides of the equation
Finally, divide each side by 3.
Picture 2:
[tex]7x+x+20=180\\8x+20=180\\8x=160\\x=20[/tex]
First, add 7x and x together for 8x
Then, minus 20 from both sides of the equation
Finally, divide each side by 8.
Step-by-step explanation:
First picture
We can make an equation with this
2x+x-3=90
3x=93
x=31 degrees
Second picture
We can make and equation
7x+x+20=180
8x=160
x= 20
Need help with slope practice
Answers
Answer: C
Step-by-step explanation: It is C because the x values are going by 1s and the y values are going by 5s
I need help ASAP atleast in the 1 hour rn
Answers
Answer:
x = 2
Step-by-step explanation:
6 (x+2)
6x+12
rewrite the equation:
6x = 12
divide 6 on both sides:
6x over 6 divided by 6 over 12 =
x = 2
What additional information is required to prove the triangles are congruent using AAS?
Since vertical angles are congruent assume:
Answers
Step-by-step explanation:
what does it mean to I ain't like that you're going to get that thing in the front what does it mean to have a correlation in a scatter plot
There is already a side given and we assume that vertical angles are congruent leaving you with only needing 1 more angle to make AAS(angle-angle-side).
write
5²
6³
9²
7⁴
2⁶
1⁴
10²
3⁴
4⁵
10⁴
All in standard form
Answers
Answer:
5*5
6*6*6
9*9
7*7*7*7
2*2*2*2*2*2
1*1*1*1
10*10
3*3*3*3
4*4*4*4*4
10*10*10*10
Step-by-step explanation:
An exponent is a number or letter written above and to the right of a mathematical expression called the base. It indicates that the base is to be raised to a certain power.
Have a great day! <3
please help me you have to put these in orrder
Answers
Answer:
[tex]9^{x}[/tex] = 9 (With x as 1) [tex]3^{x}[/tex] = 3 (With x as 1) [tex]x^{3}[/tex] = 1 (With x as 1)Step-by-step explanation:
With x = 1, we can substitute the value 'x' as the exponent. Answers are below.
=> [tex]9^{x}[/tex] = [tex]9^{1}[/tex] = 9=> [tex]3^{x}[/tex] = [tex]3^{1}[/tex] = 3=> [tex]x^{3}[/tex] = [tex]1^{3}[/tex] = 1Second =3
Third= 1
The variables x and y vary directly. Use the values to find the constant of proportionality, k . Then write an equation that relates x and y . Write any fractions in simplest form.
Answers
Answer:
k = 9/8
y = 9/8x
Step-by-step explanation:
45/40 = 9/8
To check:
40 * 9/8 = 45
Hope this helps!
the percent equivalent to Fraction 1 Over 40 Fraction.
Answers
Answer:
2.5%
Step-by-step explanation:
first things first youre gonna wanna BRING OUT THAT AWESOME CALCULATOR ok now:
enter 1 and then divide by sign, and then 40 and press Enter/equal sign.
we get:
0.025
BUT WAIT! we must multiply 0.025 by 100
we get 2.5%
Answer:
2.5%
Step-by-step explanation:
The fraction in question is 1/40, or 0.025. The percent equivalent is found by multiplying this result by 100%:
(100%)(0.025) = 2.5%
Help I don’t understand this
Answers
Step-by-step explanation:
So lets just say the recipe calls for 1 cups flour to 2 cups sugar, if you use 4 cups of flour how many cup would you need of sugar? well you would * 2 by the same amount you multiplied to get 4 cups of flour. so you would need 4 cups flour and 8 cups sugar!
Help!! Me!! Please!!
Answers
Answer:
2-4/2R2=X.X=2
Step-by-step explanation:
mark brainliest plz
wrong or right?
1) Use the number line to help you answer this question.
Describe the location of |-3 ¼ | on a number line in reference to zero. Type your response to this prompt in the space provided below.
Answers
Answer:
Step-by-step explanation:
Which answer choice shows the number 5.16×10−3 in standard form?
A)0.00516
B)0.000516
C)5160
D)51600
Answers
Sorry guess I don’t know then
what is the value of x? show the workout
Answers
8x+40=180. *180 cus a trangle is 180 degrees*
8x=140
x=17.5
b. 128
360-154-78=128
minus 360 because 360 is the degrees for circle
c. 30
add them all
4x+60=180 because 180 is the degrees measurement for a line
then solve for x
d. 13.82
add them all
17x-9+52+82=360
17x=235
x=13.82
200 divided by 269 plz help me
Answers
Step-by-step explanation:
0.7434944238 is the answer
The model shows the addition expression 18 + 12.
A model containing 3 rows of 6 orange squares and 3 rows of 4 blue squares.
One expression that is equivalent to this sum is
.
Answers
Answer:
It's simple.
Step-by-step explanation:
now since you solved some of it, 18 + 12 = 30 An expression that is equivalent to this sum is 30.
Answer:
3(6+4)
Step-by-step explanation:
ASAP!!! A proportional relationship is shown in the table below. X: 0 0.3 0.6 0.9 1.2 Y: 0 1 2 3 4 What is the slope of the line that represents this relationship? Graph the line that represents this relationship.
Answers
Twice the sum of a number and 11 is 34.
What is the number?
Answers
Answer:
Twice the sum of 11.5 and 11 is 34.
Step-by-step explanation:
Twice the sum of a number and 11 is 34.
This implies the equation:
2x+11=34 -> Solve for X.
34-11=23.
23/2=11.5
X=11.5
Could also use Desmos calculator for this, in which it would look like:
(Brainliest?) ^^
Twice the sum of a number and 11 is 34 is 2(n + 11) = 34 and the value of n
is 6.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, Twice the sum of a number and 11 is 34.
Assuming the number to be 'n', so the statement can be numerically expressed as,
2(n + 11) = 34.
2n + 22 = 34.
2n = 12. n = 6.
learn more about numerical expressions here :
https://brainly.com/question/29199574
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34 POINTS! 3 QUESTIONS.
I'm not good at math at all so help would be great
Thank You!
Answers
Answer:
1. 17^3
2.10^9
Step-by-step explanation:
the first one you subtract the exponents
the second one you multiply the exponents
hey you can help help pls pls help help me
Answers
Answer:
A.)
Step-by-step explanation:
HOPE IT HELPED:)!!
Answer:
2
Step-by-step explanation:
(3/4)/(3/8) =
(3/4) x (8/3) = 2/1 = 2
Hope this helps!
4n^4•2n^-3
Your answer should only contain positive exponents
Answers
I had the same question
Which graph shows the correct solution to the inequality below?
Answers
Answer:
Third Option
Step-by-step explanation:
3x + 18 > 6x - 9
We have to find the value of x for this
Subtract 18 from both sides to leave 3x alone
3x > 6x - 27
Subtract 6x from both sides to be able to find the value of x
-3x > -27
Divide by -3 on both sides
x > 9
The answer would be the third option, since X is anything greater than 9
Hellppp meeeeeee PLEASEEEEE-&:&:
Answers
Find −3(−1.25). You may find using a number line to be helpful. −3(−1.25) =
Answers
Answer:3.75
Step-by-step explanation:
3x1=3, 3x0.25=0.75 3+0.75=3.75, it’s positive because you’re multiplying 2 negatives
Answer:
3.75 is the answer I think
Step-by-step explanation:
Do you mean solve it? If so then thats my answer I simplified it.
!!!!!!!!!!!PLEASE ONLY ANWSER NUMBER 4!!!!!!!!!!!!!!!!! ( 20 points )
Three shipping companies want to compare the mean numbers of deliveries their drivers complete in a day.
The first two shipping companies provided their data from a sample of drivers in a table.
Company C showed its data in a dot plot.
Answer the questions to compare the mean number of deliveries for the three companies.
1. How many drivers did company C use in its sample?
2. What is the MAD for company C's data? Show your work.
3. Which company had the greatest mean number of deliveries?
4. Compare the means for companies A and B. By how many times the MAD do their means differ? Show your work.
Answers
Answer:
The means differ by 4 times the MAD.
Step-by-step explanation:
I may be missing something, but this is how I interpret it.
The mean number of deliveries for company A is 6, and the mean for company B is 14. Lastly, the mean absolute deviation (MAD) for both companies is 2.
[tex]14-6=8\\8\div2=4[/tex]
The means differ by 8, and that is 4 times the MAD, so the means differ by 4 times the MAD.