A teacher orders homework books for her class of 30 students.
The total value of the order is $135.
Two more students join her class, so she orders two extra books.
What is the total value of the order now? $
Answer:
The total value of the order now is $142.
Step-by-step explanation:
assuming all books are at the same price
135 ÷30=4.5
2x4.5=7
135+7=142
Hey I need help please. If a correlation coefficient is -0.9 what can you say about the data. Also this is a separate question but what does it mean for 2 sets of data to be positively correlated.
Answer:
Step-by-step explanation:
A correlation coefficient is a numerical measure of some type of correlation, meaning a statistical relationship between two variables. The variables may be two columns of a given data set of observations, often called a sample, or two components of a multivariate random variable with a known distribution. Pearson’s correlation coefficient returns a value between -1 and 1. The interpretation of the correlation coefficient is as under:
If the correlation coefficient is -1, it indicates a strong negative relationship. It implies a perfect negative relationship between the variables.
If the correlation coefficient is 0, it indicates no relationship.
If the correlation coefficient is 1, it indicates a strong positive relationship. It implies a perfect positive relationship between the variables.
A higher absolute value of the correlation coefficient indicates a stronger relationship between variables. Thus, a correlation coefficient of 0.78 indicates a stronger positive correlation as compared to a value of say 0.36. Similarly, a correlation coefficient of -0.87 indicates a stronger negative correlation as compared to a correlation coefficient of say -0.40.
Correlation Values
In other words, if the value is in the positive range, then it shows that the relationship between variables is correlated positively, and both the values decrease or increase together. On the other hand, if the value is in the negative range, then it shows that the relationship between variables is correlated negatively, and both the values will go in the opposite direction.
Solve this equation and why this answer is correct.
Answer:
s = 21
Step-by-step explanation:
Multiply both sides of the equation to get rid of the fraction.
7*3 = 21
can someone please help me with this what is 2x + 1x + 4
Answer:
3x + 4
Step-by-step explanation:
2x + 1x + 4 =
(2x + 1x) + 4 =
3x + 4
Hope that helps!
Answer:
3x + 4
Step-by-step explanation:
add the x's together and add the 4.
A gumball machine contains gumballs of five different colors: 26 red, 34 white, 15 blue, 20 green, and 5 orange. The machine dispenser randomly selects one gumball. The probability of getting a red is 13/50. What is the complement?
Step-by-step explanation:
9/50 actually
The complement of probability of getting a red is 37/50.
What is Probability?Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.
The value of probability will be always in the range from 0 to 1.
Given that,
A gumball machine contains gumballs of five different colors.
Red gumballs = 26
White gumballs = 34
Blue gumballs = 15
Green gumballs = 20
Orange gumballs = 5
Total gumballs = 26 + 34 + 15 + 20 + 5 = 100
The probability of getting a red is 13/50.
It's complement is probability of not getting a red, that is probability of getting any gumballs other than red.
Complement = 1 - 13/50 = 37/50
Hence the complement is 37/50.
Learn more about Probability here :.
https://brainly.com/question/13723132
#SPJ2
Please help me thank you and number them
What is the length of side KL?
A)3.3
B)6
C)7.5
D)10
Answer:
C) 7.5
Step-by-step explanation:
[tex]\frac{3}{2} = \frac{KL}{5}[/tex]
KL = 7.5
How far from the base of the house do you need to place a 15’ ladder so that it exactly reaches the top of a 12’ wall?
Answer:
3' away
Step-by-step explanation:
can someone help pls!
PLZZZZ HEEELLLPPP
Four runners start at the same point; Lin, Elena, Diego, Andre. For each runner write a multiplication equation that describes their journey.
Lin runs for 25 seconds at 8 meters per second. What is her finish point?
Elena runs for 25 seconds and finishes at 250 meters. What is her velocity?
Diego runs for 25 seconds at -8 meters per second. What is his finish point?
Andre runs for 5 seconds at -6 meters per second. What is his finish point?
Answer:
Step-by-step explanation:
h
Write the equation of the line in slope-intercept form using y=mx+b
Answer:
y = 1x - 4
Step-by-step explanation:
y = mx + b where the m is the slope and the b is the y intercept of where the line goes through the y. The M is how many squares it goes up or down. Since the line goes up 1 unit by 1 unit than the slope is 1. y = 1x + b. The line crosses the y at -4 meaning the y intercept is -4. Hope this helps!
The second question is: How many pages did rob read? Round your answer to the nearest tenth
117.2=q+17.6
q= 99.6
1.75(99.6) =174.3
Hannah read 99.6 pages so rob read 174.3 pages
Michael tracks his pay. He has already earned $97.75. He determined that the expression 97.75+17.80h represents the amount of money, in dollars, he has earned at hours.
Based on the given expression, about how many hours does it take Michael to earn 678.25?
I need help pls. (Dot plots) ♀️
Step-by-step explanation:
C. television (h)=16
homework (h)=12
D. television (h)=10
homework (h)=15
E. television (h)=18
homework (h)=14
NO LINKS
Lucy typed 3,756 words in 28 minutes. Let “w” represent the words typed each minute. If Lucy typed the same number of words each minute, how many words did she type each minute?
include an explanation on how you got your answer
Answer:
134 words per minuteStep-by-step explanation:
Divide the amount of words by the time
3756/28 = 134.1429
What fraction of 2 1/3 is 5/6?
A,) 1 17/18
B.) 5/14
C.) 11/15
D.) 1/18
200 cm= _________ meters
Answer:
2m
Step-by-step explanation:
tfxfugxfzzffggzz6tfftzf
Answer:
2 meters
Step-by-step explanation:
100 cm = 1 meter
200/100= 2
A storage box has a Volume of 56 cubic inches and the base of the box is 4 what is the height of the box?
Answer:
56 x 4 =224
Step-by-step explanation:
Plsssssss help meeeeeee
1.
total surface area Stot = 20.4924225 cm2
lateral surface area Slat = 16.4924225 cm2
bottom surface area Sbot = 4 cm2
2.
total surface area Stot = 46.1079506 ft2
lateral surface area Slat = 37.1079506 ft2
bottom surface area Sbot = 9 ft2
3.
total surface area Stot = 95.0467761 ft2
lateral surface area Slat = 68.0067761 ft2
bottom surface area Sbot = 27.04 ft2
In 24 weeks Amanda earned $4,924 selling cars. She earns the same amount of money each week. Let “n” stand for the amount she earned each week. How much money does Amanda earn in one week?
explain how you got your answer basically put the work in the explanation
Answer:
205.2 if its rounded 205.16 if not
Step-by-step explanation:
you divide $4,924 by 24 and you get 205.2
749ml= --------L please answer this question
Answer:
The answer is 0.749 L.
Step-by-step explanation:
L, dc, cl, ml
0. 7 4 9
y=3x+14
2x-3y=-14
Substitution method
Plz help me thankyou:))))))
Answer:
X=54
Step-by-step explanation:
There are multiple steps to find this problem:
So in a triangle, the opposite inverse angles are congruent,
meaning <LQM and <PLQ are congruent so <LQM is also 70 degrees
a triangle = 180 degrees, therefore, triangle QLM can be solved by adding
54 and 70 to find the measure of the 3rd angle
54+70= 124, then 180 (because its the total amount of the triangle) - 124= 56
Then, we know that <QLM and <PQL are congruent angles as they are opposite inverse angles.
So, <PQL also equals 56 degrees
Then to find the 3rd angle of the triangle PLQ you can add 56 and 70 to find the 3rd angle
56+70= 126, Then 180 - 126= 54
So, X=54
A rectangular city lot has an area of 1,000 square meters. If the length of the lot is 10 meters more than twice its width, find the length and width.
WRITE THE QUADRATIC EQUATION
Answer:
300 ?
Step-by-step explanation:
Simplify the expressions by combining like terms
1/2h + 2h + 3/2h - 1
Answer:
4h-1
Step-by-step explanation:
h/2 +2h/1 +3h/2-1
h/2+4h/2+3h/2-1
(h+4h+3h)/2 -1
8h/2 -1
4h-1
I hope this helps :)
Let me know if you need any explanations
Please helppppp I need it!
Answer:
B. 2 1/4
D. 9/4
E. 18/8
Step-by-step explanation:
Simplify the expressions.
3/8 x 6/1 = 18/8
18/8 = 9/4
9/4 = 2 1/4
Please give me Brainliest!!
PLS SOMEONE HELP PLS
Answer:
30$
Step-by-step explanation:
Answer:
The cost per calculator is $30
Step-by-step explanation:
4 calculators = $120
Therefore, each calculator is :-
$120 divided by 4
= $30
Elizabeth wants to have her birthday party at the movies. It costs $28 for pizza and $11.00 per friend for the movie tickets. How many friends ( f ) can Elizabeth have at her party if she has $182 to spend?
Answer:
Take the total, subtract the amount for pizza. Then divide by 11 to see how many friends.
Formula:
182 = 28 + 11f
14 friends
Answer:
She can have a total of 14 friends.
Step-by-step explanation:
182-28=154 => 154/11=14
What is name of your profile pic character?
Plssssssss help meeeeee
a square tile has an area of 4/9 square inches. what is the length of each side of the each side of the tile
Answer:
1/9
explanation:
divide 4/9 by 4 and that would be equal to 1/9
hope that helps⟭⟬