The height of a stack of DVD cases is in a proportional relationship to the number of cases in the stack. A stack of 7 cases and its height are shown. Find the constant of proportionality. Then use the constant of proportionality to find the height of a stack of 12 cases.
Answers
Answer:
For a stack of 12 DVD cases, it will be 132mm in height
Step-by-step explanation:
There are 7 cases stacked on top of each other and the total height is 77mm.
Since you must find the height of each individual DVD case you have to divide the height (77mm) by the number of DVD cases (7):
77 / 7 = 11 or 77 ÷ 7 = 11
Then, it asks to find the height of a stack of 12 cases, so take the 11, the height of each DVD case, and multiply it by 12:
11 × 12 = 132
So, the height of 12 DVD cases stacked on top of each other is 132mm.
Related Questions
What is the division expression that is the same as 1/9 divided by 5?
1/9 x 5
9/1 x 5/1
1/9 x 1/5
Answers
Answer:
[tex]\frac{1}{9}*\frac{1}{5}[/tex]
Step-by-step explanation:
[tex]\frac{1}{9} \div 5\\\\\frac{1}{9}*\frac{1}{5}\\\\\frac{1}{45}[/tex]
Hope this helps!
Hii.
First, lets divide 1/9 by 5 .
1/9 divided by 5 is 1/45
Lets multiply to find out the answer.
1/9 x 5 =5/9.
So this is not correct since it does not equal 1/45
9/1 x 5/1 is 45
This is not correct because it does not equal 1/45
1/9 x 1/5 is 1/45
This is correct because it equals 1/45
. Hope this helps. brainliest.
The picture shows the graphs of the functions expressed by a formula of the following type: y = kx + b.
Determine the signs of k and b for each graph.
First graph: k is_____, b is _____
Second graph: k is_____, b is _____
I will award Brainiest to the first one who gets it correct! :)
Answers
Answer:
line 1: y= 1x+ 2
line 2: y= -1x-0.5
(usually 1 is omitted but I added for clarity)
Step-by-step explanation:
slope (x)= yfinal-yintial/xfinal-xinitial
b= where line intersects y axis
line 1: (-1,0), (0.5,1.5)
(1.5-0)/(0.5-(-1))
(1.5)/(1.5)
slope= 1x
y=x+ 2
line 2: (-0.5,0), (0.5,-1)
(-1-0)/(0.5-(-0.5))
(-1)/(1)
slope= -1x
y=-x-0.5
second: k is -1, b is -0.5
help me please i need help im terable at math
Answers
Answer:
83
Step-by-step explanation:
70=x-13
70+13=x-13+13
83=x
Jenna’s method: Mia’s method:
5(30 + 4) 5(30 + 4)
(5)(30) + (5)(4) 5(34) = 170
150 + 20 = 170
Explain why both Jenna and Mia arrived at the same answer and the advantage of one method over the other.
Answers
Answer:
Jenna and Mia both used the distributive property to solve the problem, and the advantage of using Mia's method was that she added whats was I the parentheses, which narrowed down the math, but was still longer than Jenna's, as Jenna just multiplied both parts then added, making it shorter, and easier.
Step-by-step explanation:
need some help with this please!!
Answers
Answer:
Reflect triangle XYZ in 90' towards negative.
Mark me as brainlist. Hope it helps you.
what is lim x → -1 ln x
Answers
Answer:
Step-by-step explanation:
ln(∞) = ?
Since infinity is not a number, we should use limits:
x approaches infinity
The limit of the natural logarithm of x when x approaches infinity is infinity:
lim ln(x) = ∞
x→∞
x approaches minus infinity
The opposite case, the natural logarithm of minus infinity is undefined for real numbers, since the natural logarithm function is undefined for negative numbers:
lim ln(x) is undefined
x → -∞
So we can summarize
ln(∞) = ∞
Gina designs and makes her own clothes. She drew the diagram at right of the fabric she needs for the front and back of a new shirt. If each unit on the grid represents one inch, how much fabric will she need?
Answers
Answer:
56
Step-by-step explanation:
Because if you add all the sides together then and find an area and primer then that's how I found out.
Algebra Mathematics
Question 1
Mr Brown has several models of famous people that each weigh the same. He decides to add in some new models that are of different weights to his old ones. In Room Number One, there are five old models along with a new model that weighs 240kg.
In Room Number Two, there are 3 old models along with a new model that weighs 510kg.
THE TOTAL WEIGHT OF THE MODELS IN ROOM ONE IS EXACTLY THE SAME AS THE TOTAL WEIGHT OF THE MODELS IN ROOM TWO.
What is the weight of an old model?
Answers
Answer:
135kg
Step-by-step explanation:
In room number one, there are five old models and a new model, which weights 240kg. So, it can be concluded that there are 6 models in there, and we can write it as 5x ( x = old models ) + 240 ( weight of new model ). then informed room number two, there are 3 old models and a new one, weighting 510kg. write it as 3x + 510.
the equation will be as: 5x + 240 = 3x + 510
move 3x to the front behind 5x, move +240 to the back behind 510. you will get 5x - 3x = 510 -240
which will be 2x = 270, then move 2 behind 270, means 270 divide 2, which then you will get 135kg
In room number one, there are five old models and a new model, which weights 240kg. So, it can be concluded that there are 6 models in there, and we can write it as 5x ( x = old models ) + 240 ( weight of new model ). then informed room number two, there are 3 old models and a new one, weighting 510kg. write it as 3x + 510. the equation will be as: 5x + 240 = 3x + 510 move 3x to the front behind 5x, move +240 to the back behind 510. you will get 5x - 3x = 510 -240 which will be 2x = 270, then move 2 behind 270, means 270 divide 2, which then you will get 135kg
Is 9 prime, composite, or neither?
composite
prime
neither
Answers
Answer:
neither
Step-by-step explanation:
it cant be either of them.
Answer:
9 is a composite number.
Adding Rational Expression
I really need help
Answers
Answer:
your answer will be 3x/5x
Answer: 14x^2 −7x+2
(x+2) (4x−1)
Mr. Martin wrote the following problem on the board.
Juanita's car has a gas mileage of 22 miles per gallon.
How many miles can Juanita travel on 8 gallons of gas?
Alex used
22 miles
1 gallon
×
1
8 gallons
to find the answer. What should Alex have done instead?
Answers
Which of the following is an outlier in the set of data below?
2, 12, 12, 14, 17, 18, 19
19
2
14
12
Answers
Answer:
B/ 2
Step-by-step explanation:
Answers: B/2
Step by step:
Hello I need help really quick, it's about percentages
Answers
18/0.6 = 30
30-18=12
To check answer: 30*0.4 = 12
Answer:Let x be the total number of students in the class.
60% of x = ? (number of girls)
40% of x = 18 ( number of boys)
therefore, (2/5)x=18
x=45 ( Total number of students)
Use the Pythagorean theorem to find the length of side FD.
Answers
Answer: i think its 9 but sorry if I'm wrong I'm only in 4th grade
Step-by-step explanation:
In triangle ABC:
3^2+4^2= c^2
9+16=25
Square root of 25 is 5, so hypotenuse of triangle ABC is 5.
For triangle DEF, not that the given side is 8, which twice the amount of four. To find the other adjacent side of the triangle, we will multiply 3 by 2 because that is what we did with the 4. by doing this we can conclude that our other side is of the triangle is 6 Then, we have this pythagorean theorem to solve for FD:
8^2+6^2= C^2
64+36=100
C^2=100
The square root of the 100 is 10, therefore the length of side FD is 10.
Im 21 assignments behind try your best <3
Answers
Answer:
.5, 3, 8.5
Step-by-step explanation:
Divide the minutes by 2 since 6 is half of 12.Half of 1 is .5 or [tex]\frac{1}{2}[/tex]Half of 6 is 3Half of 17 is 8.5If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
Step-by-step explanation:
Pages is directly proportional to Minutes
P = KM
k = P/M
when P = 6, M = 12.
k = 6/12
k = 0.5
_____________________
when M = 1
P = Km
P = 0.5×1 = 0.5
P = half a page.
______________________
when M = 6
P = 0.5× 6
P = 3 pages
______________________
when M = 17
P = 0.5×17 = 8.5
P = 8 and half pages
Read each question. Think about the data you might collect to answer it and whether you expect to see variability in the data. Complete each blank with "Yes" or "No."
1. How many cups of water do my friends drink each day? Is variability expected in the data? Statistical or Not Statistical .
Where in town does our math teacher live? Is variability expected in the data? Statistical or Not
How many minutes does it take students in my class to get ready for school in the morning? Is variability expected in the data? Statistical or Not
Do all students in my class know what month it is? Is variability expected in the data? Statistical or Not
Answers
2. no - one exact piece of data data
3. yes - students spend different times (usually 0.5-2 hours)
4. no - students will almost all say yes, not expected to vary
Write an equation to match this graph.
Answers
Hope this helps.
Answer:
y=5x
Step-by-step explanation:
We can write this in slop-intercept form
Find the slope, rise/run = 10/2 = 5. So our slope is 5
Find the y-intercept which is 0
y=5x+0 or y=5x
Check it by plugging in a y value or x value
lets says we plugin 15, 15=5x and x=3
By looking at the graph we can see that it works
According to the National Collegiate Athletic Association men’s rules, a tennis ball must have a diameter of more than 2 1/2 inches and less than 2 5/8 inches .
A) what is the volume of a sphere with the diameter or 2 1/2 inches?
B) what is the volume of a sphere with the diameter of 2 5/8 inches?
C) write and inequality that expresses the range in the volume of the acceptable tennis ball
Answers
Answer:
this was asked in 2020 I am pretty sure that you are in a different grade now so I am going to take the points.
Help, please! I DONT GET IT
Answers
Answer:
look at the set
Step-by-step explanation:
and determine the difefrences
HELP please ASAP pls...
Answers
Answer:
-5&3/5
Step-by-step explanation:
Hope this helps!!!!!!!
helppppp please loll
Answers
Answer:
1:10 in ratio. 1/10 in fraction
Step-by-step explanation:
HeLLPPP PLEASE ASAP due in 5 min I don’t want to fail this I don’t understand this
Answers
Answer: Apri
l is 17 and June is 10
Step-by-step explanation: I'm learning this in school
Please help me! what is C?
Answers
Answer:
C = -3/8
Step-by-step explanation:
you did find C as 3/8, but its supposed to be negative
Answer : -3/8
Explanation : Have A Great Day.
◊ YusuCr ◊
What is the solution to the system of linear equations graphed below?
A- 3 1/2, -4
B- -4,3 1/2
C- 0,3
D- 0,-4
Answers
It is A because in the graph it can be seen that both intersect or touch when y= -4. From there, you look at x, the closest number is 3 and 1/2
Help please. What is 1.6 x -9?
Answers
Answer:
-14.4
Step-by-step explanation:
Answer:
-14.4
Step-by-step explanation:
If you have $1.60 cents then times it 9 times, take the sum and put back the -.
Jacob and Jackson are on a hill by the river Jacob throws an acorn into the river is acorns path is described by the equation y= -3x^2+6x+6 Jackson is her on the hill then Jacob he also throws an acorn into the river his acorn is shown by the graph in each function the x is the acorns horizontal position from the hill and one represents its height and both are measured in feet who's Acorn is on fire point above the river
Answers
Answer: Jackson's acorn reached a higher point.
Step-by-step explanation:
Use the attached picture to determine the slope of the line. Type your answer in the space provided.
Please don't answer if you don't know it!!
Answers
Solve 4-
1
4
.
Pls someone help i rlly need help with this, i’ll give brainlest
Answers
Answer:
4 - 1/4 = 15/
4
= 3 3/
4
= 3.75
Step-by-step explanation:
Subtract: 4 - 1/
4
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(1, 4) = 4. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 1 × 4 = 4. In the following intermediate step, it cannot further simplify the fraction result by canceling.
In other words - four minus one quarter = fifteen quarters.
Could I have a brainliest?? <33
last one pls answer 30 points
Answers
Answer:
yea I think it is 8 1/4 or somewhere up to 33 feet
Step-by-step explanation:
16 1/2 = 16.5/2 = 8.25
8.25 ft = 8 1/4 ft
or
16 1/2 = 16.5(2) = 33
33 ft
You are having a pizza - making party.
You will need 6 ounces of dough and 4 ounces of sauce for each person ( including yourself, the host ) .
Once you have a total count of guest, you buy exactly the needed amount of all the ingredients . The dough and sauce that you buy weigh 130 ounces all together.
1. How many ounces of dough did you buy?
2. How many ounces of sauce did you buy?
3. Num. Guest 0ω0
Worth 10 points . . .
Answers
Answer:
uhhhhhh 420....?
Step-by-step explanation:
Answer: I really need points thx
Step-by-step explanation