Mathematics Middle School

A pencil and an eraser cost € 1.40 (total cost).
Knowing that pencils are € 1 more expensive than eraser, how much does eraser cost?

Answers

Answer 1

Answer:

Eraser cost €0,2

Step-by-step explanation:

Cost of ereaser - x

Cost of pencil - x + 1

x + x + 1 = 1,4

2x + 1 = 1,4

2x = 0,4

x = 0,2

Related Questions

Solve using substitution. –6x − 5y = 19 y = 7 ( , )

Answers

Answer:

(-9,7)

Step-by-step explanation:

Happy to help ! :)

7th grade math pls help

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22 x 13 is 286 and 11 x r is 11r leaving you with 286=11r and then you have to divide each side by 11 and you get r = 26

Answer:

R = 26

Step-by-step explanation:

If 22/11 is equal to 2, and r/13, that means that r/13 is equal to 2. What over 13 is equal to 2? 26

Plz answer. What is the sum? 3x^2-2x-1/x-5 + -2x^2+x-5/x-5

Answers

Answer:

It is D, trust me because Doge said so.

Step-by-step explanation:

Brainly plz help only three questions and don't answer for point kinda rude

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I’ve attached my work
Anything in blue is for 8 and yellow is 10
Hope it helps!

SUPER HARD!!!

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Odds only!

Answers

Answer:

For #1, the equation would be (21 - 3) ÷ 4.75 ≈ 4. For #3, the equation would be (900 + 10) ÷ 5 = 182. For #5, the equation is (22 x 2) - 5 = 39.

Step-by-step explanation:

im cool but srsly pls double check this

Answer:

for 1 the equation would be (21 - 3) ÷ 4.75 = 4

Step-by-step explanation:

The rectangular pyramid shown has a volume of 1,560 cubic inches. What is the height of the pyramid? Explain how you found your answer

Answers

Answer:

30

Step-by-step explanation:

The volume formula is length x width x height ÷ 3. Triple the volume of a pyramid and then divide that amount by the area of the base to calculate its height. For this example, the volume of the pyramid is 200 and the area of its base is 30.

Answer:

Step-by-ya mamastep explanation:

help meeeee pleaseeee

Answers

sorry I need points
1.75 is the correct answer if it is meant to be in decimals!
i hope this was right, enjoy a meme! :D

The midpoint between y and k is d. What is y?

Answers

Y is the left point

PLEASE help, i need this for assignment that due TODAY

Answers

Answer:

All

Step-by-step explanation:

-3x is the same as x times -3, so all the equation is true for all values of x.

the only answer it can really be is “all”

Arwa is playing 'Guess my number'. Arwa says: 'If I add 0.4 to my number, divide the answer by 8, then multiply that answer by 9, I get 0.9.' What is Arwa's number?

Answers

0.4 is the answer because you if you work backwards and use inverse operations you get 0.4.
meaning, if you divide 0.9 by 9, you get 0.1. when you multiply 0.1 and 8 you get 0.8. and when you subtract 0.4 from 0.8 you get your answer, 0.4.

I might just be the opposite of smart but this question made no sense to me.-

Answers

I believe it’s C because if you look at exactly where the boxes end they both almost exactly end at 10 numbers past the first one

Answer:

I got ya

Step-by-step explanation:

k so I know it is not C or D tho I think it is A

Hope this helps if so please brainliest

(xy + 1) ÷ 7 if x=5 and y=11


please help (︶^︶)

Answers

(5x11 +1) divided by 7
(55+1) divided by 7
56 divided by 7
=8

Answer: it should be 8.

Step-by-step explanation:

Step 1. Factor in the given variables.

(xy + 1) ÷ 7 becomes ((5)(11) + 1) ÷ 7

Step 2. Do the first part in parentheses

so (5) x (11) which is 55.

Step 3. Add together the full parentheses

so 55 + 1 which is 56

Final step, divide.

56 divided by 7 equals 8.

plsss help ASAP thxs

Answers

Answer:

A 37

Step-by-step explanation:

A.) 37 square feet
do the area of the triangle, then the area of the rectangle, then add the 2

They say that smoking can reduce your life expectancy by 20%. If the life expectancy for a non-smoker is 90 years old, what is the life expectancy for a smoker?

Answers

The Life Expectancy for a smoker Is 40 years.

The answer is more than likely 72.

sat prep find y in equilateral triangle ABC.
a. 90 b. 70 c. 60 d. 40

Answers

Answer:

the ans

Step-by-step explanation:

40

(-7, 15), (-15, 1) Find the slope
pls help with work

Answers

The answer is 7/4 I added my work there sorry if it’s kinda messy
The answer is 7/4 for your question!

does anyone know this?

( 11 + 4) ÷ 3 × √64

Answers

Answer:

oh i used an algebra helper and got that answer i had, but i searched on      googIe after that and got 40

Answer:

40

Step-by-step explanation:

Following the order of operations you need to do the parenthases first and 11+4 is 15. Then you divide that by 3 which is 5. Then you are going to need to multiply 5 × √64 which the square root of 64 is 8 so you multiply 5 × 8 which is 40.

ASAP
Elsa has scored 16, 29, and 21 points and her three games so far how many points does she need to score in her next game so that her average (mean) is 22 points per game.

Answers

Answer:

22

Step-by-step explanation:

her average is already 22 so she needs to score 22 points for it to stay the same

The problem is about the percent of students who prefer certain kinds of music. The math information given is 40% like hip hop, 5% like Baby Shark, and 100 students prefer hip hop music. I wonder how many 6th grade students there are at the school?

Answers

Answer:

250

Step-by-step explanation:

if 40% of the students are in the 100 then that means each student is 2.5%.

im not exactly sure what the question was but i think this is the answer

4. The figure shows a rectangle with a width of 6k inches. The length of the rectangle is 4 inches shorter than the width.
a.) Find the length of the rectangle in terms of k.
b.) What is the perimeter of the rectangle in terms of k?
c.) If k = 6, find the perimeter of the rectangle.

Answers

Answer:

C.

Step-by-step explanation:

sorry if its not correct but i hope it helps

Answer:

c is the correct answer

Step-by-step explanation:

does anyone know the correct one cuz i got it wrong

Answers

i’m pretty sure it’s D
The answer is D

Explanation:

At a local print shop, 14 copies can be made for $4. At this rate, how much would it cost to make 63 copies?

Answers

it would cost 18$ ! hope this helps :)
18 , because you would count by 14 but when you get to 56 your gonna have to do halve then add 7 that equals 63 then your gonna have to could by 4’s 4,8,12,16 so then halve of 4 is 2 so 18

WILL GIVE BRAINLIEST
A line passes through the points (5,21) and (8,24) Write a linear function rule in terms of x and y for this line.
The linear function rule is y=?

Answers

Step-by-step explanation:

have you tried to use a calculator

24- 21

8- 5

4. The figure shows a rectangle with a width of 6k inches. The length of the rectangle is 4 inches shorter than the width.

a.) Find the length of the rectangle in terms of k.
b.) What is the perimeter of the rectangle in terms of k?
c.) If k = 6, find the perimeter of the rectangle.

Answers

Answer:

i don't know i just need the points.

Step-by-step explanation:

Answer:

4 answer c

Step-by-step explanation:

i am truthfull

Rita goes to the mall. If x is the number of items she ​bought, the expression 12.88x+28 gives the amount she spent in dollars at one store. Then she spent 21 dollars at another store. Find the expression which represents the amount Rita spent at the mall. Then estimate how much Rita spent if she bought 2 items . PLZZ HELPP I NEED TO TURN IT IN BY TOMORROW!!!!!

Answers

expression:
12.88x+49

estimation:
74.76

i hope this helps!!

Answer:

74.76

Step-by-step explanation:

A group bought 12 movie tickets that cost a total of $120. The group also bought 3 large drinks and 2 large popcorn.



Adult tickets cost $12 each

Large popcorn cost $6 per box.

Large drinks cost $4 each.

Student tickets cost $9 each.



How many student tickets were bought?

Answers

Answer:

10 student tickets were bought.

10 student tickets were bought

help i'm doing missing assignments and this is a lil tricky.

Answers

Answer: 25.12 ft

To find the circumference of a circle, multiply the diameter with π (pi)

Formula: 2πr (2 × radius) (π = 3.14)

In the problem...

-----------------------------------------------------------------------------------------------------------------

We can multiply 3.14 by 8 to get the circumference.

3.14 × 8 = 25.12

Hence, 25.12 is the answer, but we can do it another way.

Let me know if you have any questions.

~ Lily, from Brainly.

Note to asker: Hi there, make sure to write down these formulas!

Circumference: 2πr

Area: πr²

Radius: [tex]\frac{diameter}{2}[/tex]

Diameter: radius × 2

Have a good day!

A cylinder has a volume of 72 cubic inches. What is the volume of a cone with the same height and radius as the cylinder? explain (I don't have a picture of a cylinder sorry) ​

Answers

Explanation:

Formula: Volume = Length × Width × Height

Quadrilateral ACEG≅Quadrilateral PRMN.

Which statement is true?


AG¯¯¯¯¯≅MP¯¯¯¯¯¯

CE¯¯¯¯¯≅NP¯¯¯¯¯¯

AC¯¯¯¯¯≅MR¯¯¯¯¯¯

EG¯¯¯¯¯≅MN¯¯¯¯¯¯¯

Answers

Answer:eg-mr

Step-by-step explanation:

Answer:

EG≅MN :D

Step-by-step explanation:

I got it right on a K12 test!

hellllllllllllllllllllllllllllllllllllllllpppppppppppppppppppp

Answers

Answer:

A) 52

Step-by-step explanation:

Each answer, when you divide, all equal to 52

I think that its equal to 52 in a
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