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mamaluj [8]
3 years ago
15

HELLLLPPPPPPPP☝️☝️☝️☝️☝️!!!!

Mathematics
1 answer:
8090 [49]3 years ago
5 0
Money collected independent
tickets sold dependent
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La suma de dos números es 81. La diferencia de los mismos dos números es 33. Escribe un sistema de ecuaciones para representar e
Alekssandra [29.7K]

Answer:

a) Escribe un sistema de ecuaciones para representar esta situación.

x + y = 81 ...... Ecuación 1

x - y = 33 ....... Ecuación 2

b) Los dos números son: 57 y 24

Step-by-step explanation:

Estamos tratando con 2 números

Dejar

El primer número = x

El segundo número = y

La suma de dos números es 81.

x + y = 81 ...... Ecuación 1

La diferencia de los mismos dos números es 33.

x - y = 33 ....... Ecuación 2

Escribe un sistema de ecuaciones para representar esta situación.

x + y = 81 ...... Ecuación 1

x - y = 33 ....... Ecuación 2

Resolvemos estas ecuaciones usando el método de eliminación

Restamos la ecuación 2 de la ecuación 1 para eliminar

2y = 48

y = 48/2

y = 24

Resolver para x usando la Ecuación 1

x + y = 81 ...... Ecuación 1

x + 24 = 81

x = 81 - 24

x = 57

Por lo tanto, los dos números son: 57 y 24

7 0
3 years ago
1. Solve. 3(h – 4) = –1/2(24 – 6h)<br><br> 2. Solve for x. ax + bx = –c
Naddik [55]
ANSWER TO QUESTION 1

3(h-4) = - \frac{1}{2} (24 - 6h)

We multiply through by the Least Common Multiple which is 2.

2 \times 3(h-4) = - 2 \times \frac{1}{2} (24 - 6h)

6(h - 4) = - 1(24 - 6h)

We expand brackets to obtain,

6h - 24 = - 24 + 6h

Grouping like terms, have

6h - 6h = - 24 + 24

\Rightarrow 0 = 0

Whenever you solve an equation and you get the above result, you don't have to get confuse.

It simply means the question does not have a UNIQUE solution.

That any real number will number will satisfy the above equation.

Hence,

h \in R




ANSWER TO QUESTION 2

ax + bx = - c

We factor x to obtain;

x(a + b) = - c

We divide both sides by (a+b)

x = - \frac{ c}{a + b}
3 0
3 years ago
Which of the following situations can be best represented by the inequality 6X + 15 &lt; 100 ?
Elena L [17]

Answer:

6x<100-15

6x<85

x<85/6

x<14.17

Step-by-step explanation:

6 0
3 years ago
5 x 4000 step by step for khan
nasty-shy [4]

Answer:

Step-by-step explanation:

5×4000

=20,000 answer

7 0
4 years ago
Which set of numbers represents the domain of the set of order pairs (2,10), (-3,-10), (4,-1),(-5,2)
shutvik [7]
-3.4.-5 must be the answer
6 0
3 years ago
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