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GaryK [48]
2 years ago
14

Is this correct please help

Mathematics
2 answers:
Pavel [41]2 years ago
5 0
Yes your answers are correct
deff fn [24]2 years ago
4 0
Yes, your answers are correct.
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What is the greatest common factor of 31 43 and 95?
kramer
It’s 1. Apparently my answer is not long enough so I’m making it longer :(:
7 0
3 years ago
Prove the following statements: (a) For every integer x, if x is even, then for every integer y, xy is even. (b) For every integ
Murrr4er [49]

Answer and Step-by-step explanation:

(a) Given that x and y is even, we want to prove that xy is also even.

For x and y to be even, x and y have to be a multiple of 2. Let x = 2k and y = 2p where k and p are real numbers. xy = 2k x 2p = 4kp = 2(2kp). The product is a multiple of 2, this means the number is also even. Hence xy is even when x and y are even.

(b) in reality, if an odd number multiplies and odd number, the result is also an odd number. Therefore, the question is wrong. I assume they wanted to ask for the proof that the product is also odd. If that's the case, then this is the proof:

Given that x and y are odd, we want to prove that xy is odd. For x and y to be odd, they have to be multiples of 2 with 1 added to it. Therefore, suppose x = 2k + 1 and y = 2p + 1 then xy = (2k + 1)(2p + 1) = 4kp + 2k + 2p + 1 = 2(kp + k + p) + 1. Let kp + k + p = q, then we have 2q + 1 which is also odd.

(c) Given that x is odd we want to prove that 3x is also odd. Firstly, we've proven above that xy is odd if x and y are odd. 3 is an odd number and we are told that x is odd. Therefore it follows from the second proof that 3x is also odd.

3 0
3 years ago
3x + y = 14<br> y = 5<br> Solve the system of equations
lorasvet [3.4K]

Answer:

X=3, y=5

Step-by-step explanation:

3x + y = 14 equation 1

y=5 equation 2

3x + 5 = 14.    substitute value of y from equation 2 into equation 1

3x=9

x-3

6 0
3 years ago
Write an equation to represent the following description "fourteen less than 8 times a number is -11
Serggg [28]

Answer:

(8 * x) -14 = -11

Step-by-step explanation:

* = multiply sign (i didnt want to put "x" as the multiply sign since "x" is already being used) ( mightve confused you with 2 "x"s in the parenthesis.

x = the number that is missing being multiplied by 8

I put "8" multiplied by "x" in parenthesis since you do parenthesis first in an equation.

6 0
3 years ago
According to the table, if Akiko Buys 242 shirts, predict how many would be white.
Keith_Richards [23]

The answer would be 67 white T-shirts because there are not a lot of white t-shirts. If you didnt have a lot, then you would buy more of thta thing.

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3 years ago
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