1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SCORPION-xisa [38]
2 years ago
15

Martha compra 2 kilos de tomate y 1 kilo de cebolla pagando S/ 8,40. Si la siguiente semana compra 1 kilo de tomate y 2 kilos de

cebolla pagando S/ 7,80, ¿a cuánto está el kilo de cebolla?
Mathematics
1 answer:
Rashid [163]2 years ago
8 0

Responder:

2,40

Explicación paso a paso:

Dado que:

Dejar :

Tomate = t

Cebolla = n

(2 kilo de t) + (1 kilo de n) = 8.40

(1 kilo de t) + (2 kilo de n) = 7.80

2t + n = 8,40 - - (1)

t + 2n = 7,80 - - (2)

De (2);

t = 7,80 - 2n

Ponga t = 7.80 - 2n en (1)

2 (7,80 - 2n) + n = 8,40

15,6 - 4n + n = 8,40

15,6 - 3n = 8,40

-3n = 8,40 - 15,6

-3n = - 7,2

n = 2,4

t = 7,80 - 2 (2,40)

t = 7,80 - 4,80

t = 3

Por lo tanto, el costo de 1 kilo de cebolla es 2,40

You might be interested in
Help needed asap idk anything
Licemer1 [7]

Answer:

49x +196x.... or 245x

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What division problem does this model represent
jeyben [28]
Answer choice B is correct
7 0
3 years ago
Hans wanted to find the length of the hypotenuse of the triangle. Which statement correctly identifies his error? ​
KonstantinChe [14]

Choice 1. He did not square 40, he just multiplied by 2.

Step-by-step explanation:

Step 1:

According to the Pythagorean theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

The hypotenuse measures c cm while the other sides are 40 cm and 9 cm each.

Step 2:

According to the Pythagorean theorem,

9^{2} +40^{2} = c^{2}.

81 + 1600 = c^{2} .

1681 = c^{2} .

\sqrt{1681} = c.

This is the correct solution to the given problem. Hans did not square 40, he just multiplied by 2. Which is the first option.

5 0
3 years ago
I NEED HELP WITH TRIANGLES!!!!
Fittoniya [83]
The length of AC is congruent to WY
d = 10
6 0
2 years ago
-22m-13n<br><br>i need to factorise this
sukhopar [10]
1 22. 1 13
11 22. 13 13
22 22

answer 1 (-22m -13n)
7 0
3 years ago
Other questions:
  • May has 31 days. How would the experimental probability be affected if someone mistakenly used 30 days to calculate the experime
    10·1 answer
  • whitch is the slope of a line? ratio rise to 1, ratio run to 1, the ratio rise to run, or the ratio run to rise
    12·2 answers
  • What is the center of the circle shown below?
    7·2 answers
  • Multiply 3⁄4 × 16⁄9 .
    7·2 answers
  • Wilma and Fred combined their model block stores to make one store. How can they change each
    6·1 answer
  • If x= 4y + 3 and y = -2x - 3, what is the value of xy?
    11·2 answers
  • I want to wrap an oatmeal container. It is round with two round bases. How much paper would I need to
    13·1 answer
  • Lita estimates she will read 24 books during the summer. She actually reads 9 books. What is the percent error of her estimate?
    12·2 answers
  • Determine the XNY intercepts of the graph of X+2y=-4
    12·1 answer
  • A rectangular box has a volume x^3-64 cubic inches. If the height of the box x-4 inches, what is the area of the base of the box
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!