Answer:
y=21
Step-by-step explanation:
Since x and y vary directly, they will be proportionate to each other. In this case, y is 7 times larger than x. We know this because 28/4=7. So, the equation that describes their relationship is y=7x. This means that to find y plugin x. Therefore, y=21 because y=7(3).
Question 5:Solve for a Side
Find the missing side. Round to the nearest tenth.
For the first four days of a five day vacation, the mean temperature was 80 degrees. What must the temperature be on the fifth day in order for the mean temperature to be 82 degrees?
Answer:
The 5th day must be 90
Step-by-step explanation:
The first 4 days averaged out to 80
You can find their total just by multiplying by 4. That won't tell you the exact values, but it will tell you their total when you add the 4 of them together.
80*4 = 320
Now you need to add another day into the mix. Call it x
320 + x
Now there are 5 days, not 4, and the new total is 82.
(320 + x) / 5 = 82 Multiply both sides by 5
5*(320 + x) / 5 = 82 *5
320 + x = 410 Subtract 320
-320 -320
x = 90
The mean is ____ one of the data values
A. always
B. sometimes
C. never
Answer:
B. Sometimes
Step-by-step explanation:
When there is an odd set of numbers the mean will ALWAYS be one of the data values.
When there is a even set of numbers the mean will sometimes be one of the data values.
This means only SOMETIMES it can go with date values!
(please give brain i don't normally ask but every time i answer somebody correct i don't get it and i cant lvl up cuz of it ;-;)
~ LadyBrain
What is the best description of the relationship in the scatterplot below?
Chose 1 answer
A- positive linear association
B- negative linear association
C-Nonlinear association
D- no association
Answer:
a becuase it is just a so if you get that wroung dont blem me lol
Step-by-step explanation:
Answer:
A - Positive linear association
Step-by-step explanation:
You can see that the overall direction of the graph is going up, therefore, this graph has a postivie association.
Can some one help me out my grades are bad
Answer:
Go to the bottom of that problem and click save for later
solve x (PLEASE HELP!!)
(10x-4)
---------- = 20
5
Answer: 10.4
Step-by-step explanation:
10x-4/5 = 20
10x-4 = 100
10x = 104
x = 10.4
Answer:
10.4
bdhehehjekwjehege
A cross section of a rectangular pyramid is made perpendicular to the base and through the vertex as shown. What is the area of the cross section?
A 96 cm squared
B 60 cm squared
C 40 cm squared
D 20 cm squared
Answer:
20 cm²
Step-by-step explanation:
1/2(5 x 8 ) = 1/2 ( 40 )= 20
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
The list below shows the number of train tickets sold each
week during an eight-week period.
2945, 4572, 3560, 3359, 4089, 2841, 3283,
4266
What is the range of the data?
Answer: The range is 1731
Step-by-step explanation: lowest number 4572- 2841 highest
Help pleaseee?? Yuhh
Answer : Copy the question into brainly search bar and get youre answer.
A rectangle is formed by placing two identical squares side by side. The area of the rectangle is 162 cm2
Answer:
a) The area of each square is 81 square centimeters.
b) The side length of the square is 9 centimeters.
c) The perimeter of the rectangle is 54 centimeters.
Step-by-step explanation:
Statement is incomplete. After some web research we conclude that the complete statement is the following:
A rectangle is formed by placing two identical squares side by side. The area of the rectangle is 162 square centimeters. Find:
a) The area of each square.
b) The side length of each square.
c) The perimeter of the rectangle.
a) The area of the each square is half the area of the rectangle. Hence, the area of each square is 81 square centimeters.
b) The area formula for squares ([tex]A[/tex]), in square centimeters, is:
[tex]A = l^{2}[/tex] (1)
Where [tex]l[/tex] is the side length of the square, in centimeters.
If we know that [tex]A = 81\,cm^{2}[/tex], then the side length of the square is:
[tex]l = \sqrt{A}[/tex]
[tex]l = \sqrt{81\,cm^{2}}[/tex]
[tex]l = 9\,cm[/tex]
The side length of the square is 9 centimeters.
c) The perimeter formula of the rectangle ([tex]p[/tex]), in centimeters, is presented below:
[tex]p = 6\cdot l[/tex]
[tex]p = 6\cdot (9\,cm)[/tex]
[tex]p = 54\,cm[/tex]
The perimeter of the rectangle is 54 centimeters.
A company that makes robotic vacuums claims their newest model of vacuum lasts, on average, two hours when starting on a full charge. To investigate this claim, a consumer group purchases a random sample of five vacuums of this model. They charge each unit fully and then measure the amount of time each unit runs. Here are the data (in hours): 2.2, 1.85, 2.15, 1.95, and 1.90. They would like to know if the data provide convincing evidence that the true mean run time differs from two hours. What are the appropriate hypotheses?
H0: μ = 2 versus Ha: μ < 2, where μ = the true mean run time for all vacuums of this model
H0: μ = 2 versus Ha: μ > 2, where μ = the true mean run time for all vacuums of this model
H0: μ = 2 versus Ha: μ ≠ 2, where μ = the true mean run time for all vacuums of this model
H0: μ ≠ 2 versus Ha: μ = 2, where μ = the true mean run time for all vacuums of this model
Answer:
The answer is C. H0: μ = 2 versus Ha: μ ≠ 2, where μ = the true mean run time for all vacuums of this model
Step-by-step explanation:
EDGE 2021
Find the missing measure angle
Answer:
Step-by-step explanation:
x+90+90+78=360(sum of 4 angles is always 360 degree)
x+258=360
x=360-258
x=102
Answer:
[tex] {x}^{o} = {102}^{o} [/tex]
Step-by-step explanation:
Hint:
sum of angles = 360°
Simplify:
[tex] {x}^{o} + {78}^{o} + {90}^{o} + {90}^{o} = {360}^{o} \\ {x }^{o} + 258^{o} = {360}^{o} \\ {x}^{o} = {360}^{o} - {258}^{o} \\ {x}^{o} = {102}^{o} [/tex]
Hope it is helpful....
Monique's swimming pool filter needs repair. She calls two companies for prices. The
Pool Boyz charge $70 for a service call and $40/h for labour. Kemikal Balance charge
$50 for a service call and $45/h for labour.
a) Write a linear equation for each company.
b) Find the solution to this linear system
Joseph is trying to pick out an outfit for the first day of school. He can choose from 2 pairs of pants, 8 t-shirts, and 2 pairs of shoes. How many different outfits does Joseph have to choose from?
Answer:
Here is your answer and explanation have a good day
Step-by-step explanation:
The total number of different outfits Joseph can choose is A = 32 outcomes
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
The number of pairs of pants = 2 pairs
The number of pairs of t-shirts = 8 pairs
The number of pairs of shoes = 2 pairs
And , the total number of outcomes A = 2 x 8 x 2
On simplifying the equation , we get
The different outfits does Joseph can choose A = 32 outfits
Hence , the equation is A = 32 outfits
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ3
A model of a car is built with a scale of 1 inch : 4 feet. If the length of the model car is 2.7 inches, then the length of the actual car is how many inches?
Answer:
10.8
Step-by-step explanation:
Just do 4 x 2.7
Find the measure of the missing angle.
Answer: a= ______
(NO FILES) IF YOU ANSWER YOU WILL BE MARKED BRAINLIEST :)
Answer:
a= 32
Step-by-step explanation:
Since "a" is a part of a supplementary angle (An angle that adds up to 180º)
What you would need to do is add 58º and 90º (90º because the right angle = 90)
so 58+90 = 148
Then you would subtract 148 from the total of the angle (Which is 180)
so 180 - 148 = 32, And that shows that a = 32
(P.S. THE BOTS THAT POST THE LINKS TO THE FILES ARE POSTING MALWARE AND VIRUSES, DO NOT DOWNLOAD ANYTHING FROM THEM THEY ARE VIRUSES. IF YOU HAVE DOWNLOADED ANYTHING, GET A RELIABLE ANTIVIRUS SOFTWARE AND SCAN YOUR COMPUTER)
A manufacturer of spiral notebooks finds that about 8 out of every 500 notebooks are defection. if they produce 2,500 notebooks every day, how many defective notebooks can they expect to find during a 5 day work week?
LINKS AND FUNNY COMMENTS WILL BE REPORTED!
Answer:
200 notebooks
Step-by-step explanation:
Provided Information:
1) 8 out of every 500 notebooks contain a defect
2) 2500 notebooks are produced per day
We need to find out how many defective notebooks are produced per day:
1) 2500 ÷ 500 = 5
2) 8 x 5 = 40
Next we need to find out how many notebooks are defective per week:
1) 40 x 5 = 200 defective notebooks per week
At the end of January, Garrett had $176 in his
savings account. By the end of February, he
had $217. To the nearest percent, what is the
percent change in the amount of money in
Garrett's savings account?
Answer:
bank account cant give me 5 bank name
Find x then calculate the measure (geometry)
Answer:
3
Step-by-step explanation:
Angles ( 17x - 1 ) and ( 15x + 5 ) are alternate interior angles.
Alternate interior angles are equal.
17x - 1 = 15x + 5
17x - 15x = 5 + 1
2x = 6
x = 6 / 2
x = 3
Jaden is comparing two cones. The radius of the base of cone AA is twice as large as the radius of the base of cone BB. The height of cone BB is twice the height of cone AA. The volume of cone AA is
Answer:
VA = 2/3πrB²hB
Step-by-step explanation:
Let the volume of cosA ad cone B be expressed as;
Va = 1/3πra²ha
Vb = 1/3πrb²hb
If the radius of the base of cone A is twice as large as the radius of the base of cone B
rA = 2rB
If the height of cone B is twice the height of cone A, then;
hB = 2hA
hA = hB/2
Recall that;
VA = 1/3πrA²hA
VA = 1/3π(2rB)²(hB/2)
VA = 1/3π*4rB²(hB/2)
VA = 2/3πrB²hB
This gives the volume of cone A
Can I get a answer for all of it?
Answer:
R'=(-3,6)
Q'=(-3,-3)
S'=(7,6)
T'=(7,-3)
Answer:
see explanation
Step-by-step explanation:
A translation of 7 units right means adding 7 to the x- coordinate. The y- coordinate remains unchanged, then
Q (- 10, - 3 ) → Q' (- 10 + 7, - 3 ) → Q' (- 3, - 3 )
R (- 10, 6 ) → R' (- 10 + 7, 6 ) → R' (- 3, 6 )
S (0, 6 ) → S' (0 + 7, 6 ) → S' (7, 6 )
T (0, - 3 ) → T' (0 + 7, - 3 ) → T' (7, - 3 )
HELP DUE IN 10 MINS!
Which equation has the following: Center (-7, 12) and radius 3.
A. (x−7)2 +(y − 12)2 = 9
B. (x+7)2 + (y - 12)2 = 3
C. (x+7)2 +(y + 12)2 = 3
D. (x+7)2 +(y − 12)2 = 9
Answer:
D
Step-by-step explanation:
(x+7)²+(y-12)²=9
____________
Answer:
[tex]\text{D. }(x+7)^2+(y-12)^2=9[/tex]
Step-by-step explanation:
The equation of a circle with radius [tex]r[/tex] and center [tex](h, k)[/tex] is given by:
[tex](x-h)^2+(y-k)^2=r^2[/tex]
if u subtract 12 from a number and multiply the result by 12 you get 18. what is the number
Answer:
27/2 is the value of the number.
Let the number be x.
According to the question,
12(x-12)=18
x-12=18/12
x-12=3/2
x=3/2+12
x=3/2+24/2
x=27/2
HOPE IT HELP :)
Answer:
13.5 27/2 13 (1/2) all the same
Step-by-step explanation:
(x-12)x12 = 18
12x-144 = 18
12x = 162
x = 162/12 = 27/2 = 13(1/2) = 13.5
find the value of x pls help
The angle facing the shortest length in a triangle is
A. A right angle
B. An acute angle
C. An opposite angle
D. The smallest angle
Answer: To be honsest i think it is C.) "Opposite angle" because the shortest side is always opposite the smallest interior angle.
Solve for x.
Anyone know how to do this?
Answer:
hope this helps you look it once.
Dana is planning the school picnic and needs to decide what food vendor to
use. She asks 750 students whether they would rather have a taco truck or a
fruit smoothie cart. The results of the survey are shown in the table.
Taco truck Fruit smoothles Total
Eighth-graders 180
120
300
Ninth-graders
110
90
200
Total
290
210
500
What is the relative frequency of eighth-graders who want fruit smoothies?
A. 0.36
B. 0.24
C. 0.22
D. 0.12
Answer:
0.24
Step-by-step explanation:
Total = 500
8th Grade, Fruit Smoothie = 120
120 ÷ 500 = 0.24
= 0.24
A rectangle has a length of
381
and a width of 33 inches. Find the area of the rectangle. (2 points)
Can someone please help mweeeeeee
Answer:
D
Step-by-step explanation:
180 degrees in a triangle
102+(x+6)+(x+15)=180
remove parenthesis and combine like terms
123+2x=180
subtract 123 from both sides
2x=57
divide
x=28.5
substitute x for its actual value
28.5+6
angle A= 34.5
28.5+15
angle B= 43.5
Please help with these questions. Write answer for 19 and 20 thank you
Answer: It let me add an answer!! For number 19. The answer is y > 3x - 3. And for number 20. The answer is y is less than or equal to 1/2x + 1
Have a nice day! :)