Mathematics Middle School

Last year Ron bought 40 pen sets and sold 25. This year he bought 75 pen sets and sold 60. The absolute error each year was the same. Are the percent errors also the same? Explain using the solutions.

Answers

Answer 1

Answer:200

Step-by-step explanation:

Answer 2

Answer:

No, different

Step-by-step explanation:

Last year

Bought 40 sets

Sold 25 sets

Error = 25 - 40 = -15Absolute error = | - 15| = 15Percent error = 15/40*100% = 37.5%This year

Bought 75 sets

Sold 60 sets

Error = 60 - 75 = -15Absolute error = |-15| = 15Percent error = 15/75*100% = 20%

We can see absolute errors are same but percent errors are different.

The reason is the referenced numbers are different.

Related Questions

I NEED HELP ASAP Joe is purchasing a new cell phone plan and is trying to decide between two different options.
Plan #1:
$20 per month base fee
$0.10 per minute
Plan #2:
$10 per month base fee
$0.15 per minute
a. Last month, Joe spent 160 minutes talking on the phone. If he expects to talk this much next month, which plan should he go with?

b. Joe decided to go with Plan #1. If his total bill for the next month was $25.40, how many minutes did he spend talking on the phone?

Answers

Answer:

Plan 2:

2 = 34

Answer:A- plan A=34

2=34

Step-by-step explanation:

B=54 hope it helped have a good day!

please help ill give brainliest

Answers

Answer:

26.25

Step-by-step explanation:

I'm pretty sure this is the correct answer.

is 0.35 closer to 0, 0.5, or 1?

Answers

Answer:

0.5

Step-by-step explanation:

0.35 is 0.15 away from 0.5

0.35 is 0.35 away from 0

0.35 is 0.65 away from 1

Giving brainliest!!!!!!!

Answers

I believe the correct answer is the last option D.

Explanation:

The volume is 2 1/4 because 1 1/2 times 1 1/2 times 1 = 2 1/4
The instructions then say that there is 8 half unit cubes for every one unit cube so you multiply 2 1/4 by 8 to get 18

I hope this helps :))

Answer:

Step-by-step explanation:

please just do number 8

Answers

i think it’s 14/5 or 2.8 :(

Step-by-step explanation:

1/2 + 2/3 =
8/ 12 + 8 /11 =
2/7 + 6/10=

Answers

Answer:

1/2 + 2/3 = 1 1/6

8/12 + 8/11 = 1 13/33

2/7 + 6/10 = 31/35

Hip hop music makes up 75% of Landon's music library. If he has downloaded 120 hip hop songs, how many songs does Landon have in his music library? (Explain your answer/show your work)

Answers

Answer: 160 songs.

Step-by-step explanation:

75% hip hop music - 120 songs

100% all music - x songs

Let's write the proportion:

[tex]\dfrac{120}{75} =\dfrac{x}{100} \\\\75x=120 \cdot 100\\75x=12000\\75x : 75 = 12000 : 75\\x = 160[/tex]

Thus, Landon have 160 songs in his music library.

I WILL GIVE YOU BRAINLIEST IF YOU HELP ME WITH THIS MATH WORKSHEET (1/2)

Answers

Answer:

Step-by-step explanation:

1) corresponding angles

2)alternate interior angles

3)alternate interior angles

4)corresponding angles

2x-7=123

2x=130

x=65

5)corresponding angles

6x-11=5x

6) alternate interiot

40=14-2x

26=-2x

-13=x

Yes^that answer is correct ^

the question is in the photo :)

Answers

jaurbsowhdudowhxodbs

149.85 for the white tee, price stays the same on the second, 359.96 on the 3rd

What is 40% of 75?

Use the ratio table to solve the percent problem.

Part Whole
? 75
40 100

Answers

Answer:

Step-by-step explanation:

40% of 75 is just 0.4 times 75.

0.4 x 75 = 30

Let me know if this helps!

Answer:

Step-by-step explanation:

Good Luck

Pls help its not that hard, im in 7th grade

Answers

i think it's 20 but i'm not that sure

Answer:

7/5

Step-by-step explanation:

To determine the proportionality you'll have to multiply the answers by x to get y. In this case 7/5 is the answer.

Calculations

0 x 7/5 = 0

20 x 7/5 = 28

40 x 7/5 = 56

A manufacturer of breakfast cereals is considering the following two designs for cereal boxes.

The manufacturer wants to pick the package that will use the least cardboard packaging for a given volume of cereal.

Calculate the surface area and volume of each cereal box. Which one should the manufacturer use?

The manufacturer should use Box _______.

Answers

Answer:

Box A

Step-by-step explanation:

(72x2)+(18x2)+(36x2)=252

Which equation has a constant of proportionality equal to 7?
A. 4y = 28x
B. 7y = 28x
C. 28y = 4x
D. 28y = 7x

Answers

A is correct.

Reasoning: 4 x 7 = 28

good luck!

The solution is Option A.

The equation which has a constant of proportionality k = 7 is 4y = 28x

What is Proportion?

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the equation be represented as A

Now , the value of A is

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

Now , the equation is

4y = 28x

On simplifying the equation , we get

Divide by 4 on both sides of the equation , we get

y = 28x/4

y = 7x

y = 7x is of the form y = kx where the value of k is 7

Therefore, the value of k is 7

Hence , the value of proportionality constant is 7

To learn more about proportion click :

https://brainly.com/question/7096655

#SPJ2

Choose Yes or No to tell if the fraction 3/5 will make each equation true.
7/20 + 3/5 = 19/20 (yes/no)
3/5 + 3/10 = 3/15 (yes/no)
1/2 + 2/3 = 3/5 (yes/no)
1/10 + 1/2 = 3/5 (yes/no)

Answers

yes
no
no
yes
i hope it helped.

Correct answers:
Yes
No
No
Yes

Lamont purchased a sweater that was on sale for 25% off.
Which expression represents the amount that Lamont paid for the sweater if x represents the original price of the sweater?

Answers

y= x*0.025
hope this helps!!

The correct answer would be y=0.75x because 0.25x is how much money she saved while 0.75x is how much she still had to pay for the sweater

The Buffaloes won 57.1% of their 140 baseball games this year. How many games did they win?
A) 60
B) 70
C) 80
D) 90

Answers

Answer:

C - 80 games

Step-by-step explanation:

140 * 0.571 ≈ 80

C is the correct solution A, B, and D are incorrect

2.19=2.14b^x
what do b and x equal
i think b equals 5 if that helps

Answers

B does equal 5 you are correct

It’s going to be b = 5

I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would appreciate it!

Answers

Heyy It's me again! I hope I can help you with this question too!

Answer:

Im pretty sure it's like 5 or 6 ft

Step-by-step explanation:

sry if its not right

Answer: 4.5 ft

Step-by-step explanation:

21-16.5=4.5

brainliest please? ^^

Can someone please help me

Answers

7pounds 2pounds 7-2= 5

!!!(URGENT)!!! What is the surface area of this figure

Answers

Answer:

36 inches

Step-by-step explanation:

if you unfold the triangular prism and find the area of each individual shape, all you have to do is add them up:

Area Of Rectangle = WL

Area Of Triangle = 1/2(HB)

5x2=10

4x2=8

3x2=6

(4x3)1/2=6x2=12

10+8=18+6=24+12=36

Answer the questions and provide an explanation (if needed).

Answers

Answer:

1. 0 2. 130 3. -9.9

Step-by-step explanation:

number 9 -_- like what is this

Answers

Answer:

Place the paranthases around 5-2

Step-by-step explanation:

Honestly bro I wish I could help you but I hope someone comes around and gives you a hand. Good luck!

Write an equation: Six more than five times a number is negative twenty

Answers

Answer:

Let n = the number

5x + 6 = 2x - 9

3x = -15

x = -5

Step-by-step explanation:

6+5•x=-20 or try 6+5x=-20

Finding Circumference

Answers

Answer:

Step-by-step explanation:

[tex]16 \times 2 \times 3.14 = 100.48[/tex]

Answer:

100.48

Step-by-step explanation:

the formula for circumference is C = 2 (pi) r

2(3.14)(16)=100.48

PLZ HELP
the expressions a[8x+7] and 4x+3.5 are equivalent. what is the value of a

Answers

Answer:

[tex]a=0.5[/tex]

Step-by-step explanation:

Divide each term by [tex]8x+ 7[/tex] and simplify.

Hope this helps :)

-ilovejiminssi♡

a(8x + 7) = 4x + 3.5

8ax + 7a = 4x + 3.5

equating coefficients of x : 8a = 4 so a = 1/2

also 7a = 3.5 so a = 1/2

The value of a is 1/2

What value of x makes this equation true? HELP ASAP I GOTTA TURN THIS HOMEWORK I N PLZ PLZ HELP

Answers

Answer: x =-1

Step-by-step explanation:

4x-18=7x-15

4x-7x=-15+18

-3x=3 , x=-1 since 3/-3=x

Your answer would be -1

What is the rate of change for the linear relationship modeled in the table? (4 points)

x y
−1 10
1 9
3 8
5 7
a
negative one over two

b
0

c
one over two

d
2

Answers

Almost sure the answer is A

Answer:

The answer is A -1/2

Step-by-step explanation:

I have a triangle: Angle A = 3x +28; Angle B = 5x +52; Angle C = 2x - 10: Solve for X

Answers

I have no clue if I even did this right but here’s my work. I don’t wanna get it wrong for you!

Answer: x=11

Explanation: The anglers in a triangle must all add to 180.

Therefore, we can use the equation 180=3x+28+5x+52+2x-10

Combing like terms gives us 180=10x+70

Solving for x gives us 11.

To check our work, we can plug in 11 for x.

3(11)+28+5(11)+52+2(11)-10=180.

Instead of buying 3 white t-shirts for Bobby she purchased 5. How much was each shirt if the Gap sold them at 3 for $49.95. What does each shirt cost?

Answers

Answer:

The answer should be 16.65.

$16.65 I think cause you would do 49.95 dollars divided by 3 I think

Two linear functions are represented in different formats.

Function 1:

x y
0 −2
2 0
3 1
5 3
Function 2:

Graph of a line passing through the point begin ordered pair negative 2 comma 0 end ordered pair and the point begin ordered pair 0 comma 4 end ordered pair.

Which statements are true?

Select each correct answer.

Function 1 has a greater rate of change than function 2.

Function 2 has a greater rate of change than function 1.

Function 1 has a greater y-intercept than function 2.

Function 2 has a greater y-intercept than function 1.

Answers

The statements that are true are;

Function 2 has a greater rate of change than function 1.

Function 2 has a greater y-intercept than function 1.

Step-by-step explanation:

Given that function 1 has the table;

x y

0 -2

2 0

3 1

5 3

Finding the slope of the linear function gives the rate of change of the function. In this case,

m=Δy/Δx

m=3-1/5-3 = 2/2 =1

The equation of the linear function is given as;

m=Δy/Δx

y-3/x-5= 1

y-3=x-5

y=x-5+3

y=x-2

y-intercept is -2

In function 2, the line passes through points (-2,0) and (0,4)

Finding the slope of the line,

m₁=Δy/Δx

m₁=4-0/0--2

m₁= 4/2 =2

Rate of change is 2

Finding the equation of the line

y-4/x-0 = 2

y-4=2(x-0)

y-4 =2x

y=2x+4

The y-intercept is 4

The statements that are true are;

Function 2 has a greater rate of change than function 1.

Function 2 has a greater y-intercept than function 1.

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