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
spayn [35]
2 years ago
14

Para reformar la cocina de su caja Berta compro la semana pasada 2 cajas de plaquetas para el suelo y 4 de azulejos para la pare

d por 200 €. Hoy la comprado 2 cajas más de plaquetas y otras 2 de azulejos per 130 € Cuanto cuesta la caja de plaquetas y la de azulejos
Mathematics
1 answer:
Anvisha [2.4K]2 years ago
6 0

Answer:

Caja de plaquetas = x = 30 €

Caja de azulejos = y = 35 €

Step-by-step explanation:

Deje que el costo de

Caja de plaquetas = x

Cuadro de mosaico = y

Por Berta

Para reformar su cocina, Berta compró la semana pasada 2 cajas de baldosas de plaquetas para el suelo y 4 cajas de baldosas para la pared por 200 €.

2x + 4y = 200 ...... Ecuación 1

Hoy

Hoy compré 2 cajas más de plaquetas y otras 2 de tejas por 130 €.

2x + 2y = 130 ..... Ecuación 2

Resolvemos usando el método de Eliminación

2x + 4y = 200 ...... Ecuación 1

2x + 2y = 130 ..... Ecuación 2

Restar la ecuación 2 de 1

2 años = 70

y = 70/2

y = 35 €

Resolviendo para x

2x + 4y = 200 ...... Ecuación 1.

2x + 4 × 35 = 200

2x + 140 = 200

2x = 200 - 140

2x = 60

x = 60/2

x = 30 €

el costo de

Caja de plaquetas = x = 30 €

Caja de azulejos = y = 35 €

You might be interested in
Change 3500 ml to litres.​
Neko [114]

Answer: 3.5L

Step-by-step explanation:

1000 Ml = 1L

3500 Ml = 3.5L

3 0
2 years ago
Read 2 more answers
One batch of walnut muffins uses
Sholpan [36]

Answer:

4 cups

Step-by-step explanation:

8 0
3 years ago
27 is 72% of what number?
NNADVOKAT [17]

Answer:

37.5

Step-by-step explanation:

37.5 · 0.72 = 27

5 0
2 years ago
Read 2 more answers
At the Dessert Island Pastry Cafe, there are 2 cakes for every 7 donuts and 11 brownies for every 3 cakes. What is the ratio of
Westkost [7]

Answer: 22/21

Step-by-step explanation:

2 cakes : 7 donuts      →   6 cakes : 21 donuts

3 cakes : 11 brownies  →  6 cakes : 22 brownies

22 brownies : 21 donuts

Now, simply write this as a fraction. 22/21

7 0
3 years ago
Read 2 more answers
You are in a bike race. When you get to the first checkpoint, you are $\frac{2}{5}$
Black_prince [1.1K]

Answer:

The distance from the star to the second checkpoint is 4 miles

Step-by-step explanation:

The complete question in the attached figure

we know that

When you get to the second checkpoint, you are 1/4 of the distance to the finish

so

The distance from the star to the second checkpoint is equal to the total distance multiplied by 1/4

The total distance is 40 miles ( see the attached figure)

so

The distance from the star to the second checkpoint is

\frac{1}{4}(40)=10\ miles

<em>Find out the distance from the start to the first checkpoint</em>

Multiply the distance from the star to the second checkpoint by 2/5

\frac{2}{5}(10)=4\ miles

6 0
3 years ago
Other questions:
  • How to get the values of a and b? i need to differentiate first the equation? ​
    10·1 answer
  • Identify the y intercept and asymtote for the exponential function f(x)=3^x+2
    14·1 answer
  • 7.
    8·1 answer
  • What's the area of the triangle below?
    11·1 answer
  • What is 6.99 divided by .25
    13·1 answer
  • Find the cube root of x^54.
    13·1 answer
  • Please help with these 3! Don’t need the steps, just the answer
    10·1 answer
  • What is the value of the digit 2 in the number 425,611?
    10·2 answers
  • Please help <br>cos40∘=sin(x+30∘)​
    5·2 answers
  • 3.PS-15
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!