Determine if the ordered pair (-2, -4) is a solution of

Mathematics

1 answer:

kenny6666 [7]3 years ago

4 0

Yes, it’s a solution. First you plug in -2 for x and -4 for y. 5(-2) is -10 and -2(-4) is positive 8. Add -10 to 8 and you’ll get -2 which is what you should get if the ordered pair is a solution. Hope this helps

You might be interested in

Which of the statements using operations on rational or irrational numbers always results in a rational number?

-BARSIC- [3]

<h3>Hm a irrational number is a number like this:</h3>

$1.999999\inf$

So adding a rational number, like 2, it would be irrational still:

$2+1.999999\inf=3.999999\inf$

That being said, answer C is wrong

Now, what is 2/2? Or 4/1? Whole numbers are one of the 3 types of rational numbers.

$2\ /\ 2=1\\\\4\ / 1=\ 4$

Thus the answer appears to be D

Now lets use the process of elimination to double check the answer:

The wording of your question is what will help us out here:

Which of the statements using operations on rational or irrational numbers <u>always results </u>in a <u>rational number?</u>

Because of that, any of the choices that involve a irrational number can result with another irrational number like so:

$a)\ 1.999\inf+ 1.999\inf=3.888\inf\\\\b)\ 2.999\inf / 1.999\inf= 1.50025\inf$

And there you go, the only answer that hasn't been proven wrong is answer D.

<h3>Now, if you like this answer and would like to see more please make sure to Like, Comment, and Rate this answer! Also, be sure to send me a friend request, I'm always up for a Challenge!</h3><h2>Thanks!</h2>

8 0

3 years ago

William deposited $7500 into an account that accumulated simple interest at a rate of 2.5% a year. At this rate, how long would

egoroff_w [7]

Answer:

15 years

Step-by-step explanation:

$10,312.50-$7500 = $2,812.50 in interest we need over time

7500 x 2.5= $187.50/year (interest)

$2,812.50 / $187.50 = 15 years

4 0

3 years ago