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3 years ago

If m + 1 is an an even integer which one of the following must be an odd integer ?

Mathematics

2 answers:

Olenka [21]3 years ago

7 0

Answer:

Option C.

Step-by-step explanation:

Even number : A number is called even if it is divisible by 2, i.e., 2, 4, 6,...

Odd number : A number is called odd if it is not divisible by 2, i.e., 1,3,5,...

It is given that m + 1 is an an even integer.

Since alternate numbers are even, therefore m must be an odd number.

If m is odd, then m-1 is even.

2m is divisible by 2, so it is always an even number. So,

2m - 2 is even.

2m+1 is odd.

2m+2 is even.

Since 2m+1 is an odd number, therefore the correct option is C.

AveGali [126]3 years ago

4 0

Answer:

C: 2m + 1

Step-by-step explanation:

If m + 1 is even, then m is odd.

A: m - 1 is even

B: 2m - 2 is even

C: 2m + 1 is odd

D: 2m + 2 is even

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butalik [34]

Answer:

(x, y) = (-1, 1)

Step-by-step explanation:

8x + y = −7

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8x + 1 = -7

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8x = -8

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Which expression represents the product of negative three-fourths x and –8x?

den301095 [7]

Answer:

6x²

Step-by-step explanation:

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2 years ago

A tortoise walk 52.0 feet per hour. Convert this into inches per minute

sattari [20]

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4 years ago

La edad de juan es un año menos que la tercera parte de la edad de la madre. si dentro de 5 años, la edad de la madre sera 10 añ

koban [17]

Usando un sistema de ecuaciones, se encuentra que Juan tiene 12 años e su madre tiene 39 años.

<h3>¿Qué es un sistema de ecuaciones?</h3>

Un sistema de ecuaciones es cuando dos o más variables están relacionadas y las ecuaciones se construyen para encontrar los valores de cada variable.

En este problema, las variables son:

Variable x: Edad de Juan.

Variable y: Edad de su madre.

La edad de juan es un año menos que la tercera parte de la edad de la madre, por eso:

$x = \frac{y}{3} - 1$

Dentro de 5 años, la edad de la madre sera 10 años mas que el doble de juan, por eso:

$y + 5 = 2(x + 5) + 10$

$y + 5 = 2x + 20$

Como $x = \frac{y}{3} - 1$ :

$y + 5 = \frac{2y}{3} + 18$

3y + 15 = 2y + 54

y = 39

$x = \frac{y}{3} - 1 = \frac{39}{3} - 1 = 13 - 1 = 12$

Juan tiene 12 años e su madre tiene 39 años.

Puede-se aprender más a cerca de sistema de ecuaciones en brainly.com/question/20178040

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2 years ago