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
Darina [25.2K]
3 years ago
15

Can someone please help me

Mathematics
2 answers:
Brrunno [24]3 years ago
6 0

Answer:

S =7

equations:  E = 4  and

E = S - 3

Step-by-step explanation:

Let area of Europe = E

Let area of South America = S

then

E = 4

E = S - 3

then  S = E + 3 = 4 + 3 = 7

So  S = 7

Vladimir [108]3 years ago
3 0
Sorry I don’t know, but I need to answer to get an answer so so sorry
You might be interested in
1. De una encuesta realizada a 120 personas sobre el consumo de albaricoque, banana y coco se obtuvieron el siguiente resultado.
Pachacha [2.7K]

Answer:

El número de personas que consumen dos productos es 30.

Step-by-step explanation:

El primer paso para resolver el problema es realizar los gráficos de los eventos (agregaré como archivo adjunto el gráfico del ejercicio).

En el gráfico podemos ver 7 regiones :

A : Personas que consumen sólo albaricoque.

B : Personas que consumen sólo banana.

C : Personas que consumen sólo coco.

D : Personas que consumen sólo albaricoque y coco.

E : Personas que consumen las tres frutas (albaricoque, banana y coco).

F : Personas que consumen sólo banana y coco.

G : Personas que consumen sólo albaricoque y banana.

Ahora, debemos escribir las ecuaciones que nos brinda el ejercicio :

La encuesta se realizó a 120 personas y se sabe que todas las personas consumen un producto ⇒

A+B+C+D+E+F+G=120 (I)

''El número de personas que consumen sólo albaricoque y coco es la mitad de las que consumen sólo albaricoque''  ⇒

D=\frac{A}{2} (II)

''El número de personas que consumen sólo banana es el doble de las personas que consumen sólo albaricoque y banana más sólo banana y coco'' ⇒

B=2.(G+F) (III)

Finalmente : ''El número de personas que consumen sólo coco más los que consumen los tres productos es 30''  ⇒

C+E=30 (IV)

Finalmente obtenemos el siguiente sistema de ecuaciones :

A+B+C+D+E+F+G=120\\D=\frac{A}{2}\\B=2.(G+F)\\C+E=30

El número de personas que consumen dos productos es :

D+F+G

Entonces, resolvemos escribiendo la primera ecuación conmutando los términos :

A+B+C+E+D+F+G=120 (V)

De (II) se obtiene :

2D=A (VI)

Usamos (VI), (III) y (IV) en (V) ⇒

2D+2(G+F)+30+D+F+G=120  ⇒

2D+2G+2F+30+D+F+G=120

3D+3F+3G=90

Dividiendo esta última ecuación por ''3'' obtenemos :

D+F+G=30

Que es el número de personas que consumen dos productos.

Es muy conveniente seguir el desarrollo del ejercicio mirando el gráfico que adjunto.

8 0
3 years ago
Find the area and perimeter of the rectangle Length = 5cm Breadth =2cm
avanturin [10]

Answer:

perimeter: 14

Area: 10

Step-by-step explanation:

PERIMETER

2x(L+B) = 2x(5+2) = 2x(7) = 14

AREA

LxB = 5x2 = 10

PLEASE MARK ME BRAINLIEST

5 0
3 years ago
True or false two lines with the same y intercept are perpendicular
tensa zangetsu [6.8K]

It is true your welcome.

4 0
3 years ago
A gumball machine has 220 red gumballs. If the red gumballs are 50% of the total number of gumballs, how many gumballs are in
JulijaS [17]
Answer:

440

Explanation:

If 50% of the total gum balls are red which is 220, then the other 50% is 220.
5 0
3 years ago
Read 2 more answers
There were 10 bunches of roses and tulips. Each bunch had 5 of the same flowers. There were 2 more bunches of tulips than roses.
____ [38]

Answer:

7

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Bill spent 2/3 of an hour swimming and 5/6 of an hour jogging. How much longer did he jog than swim
    7·2 answers
  • 5(2x - 8) + 15 = -15 <br> what is the solution? what are the steps to find the solution?
    6·1 answer
  • A grocery store is offering a promotion where a customer receives a $0.20 discount per item on selected sale items, and Paulo ha
    8·1 answer
  • The expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. If the length is Fr
    5·2 answers
  • The width of a rectangle is 7 inches less than its length. The area of the rectangle is 120 square inches. Solve for the dimensi
    9·1 answer
  • On Friday, the temperature in town at 5:00 pm was 7 degrees F, which was 13 degrees warmer than at 9:00 a.m. On Friday from 5:00
    9·1 answer
  • Clint is in study hall reading a book. after 20 mins, he is on page 151. after 45 mins, he is on page 181. how many pages has cl
    15·2 answers
  • What is solution of 8x-2y =1 and -4x+y = 3
    12·1 answer
  • A spy is trying to escape. She must get by four guards. Each guard takes half of her remaining money. She then $64 for her plane
    6·1 answer
  • When money is spent on goods and services, those who receive the money also spend some of it. The people receiving some of the t
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!