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3 years ago

A system of equations is shown below. Which ordered pair represents the solution to the system

Mathematics

1 answer:

vladimir1956 [14]3 years ago

5 0

Answer:

The correct answer is (-5,-5)

Step-by-step explanation:

1. Both of the equations are in standard form, so first you set them equal to each other.

2. Solve for x as a normal algebraic equation.

3. Back substitute your answer for x into one of the original equations. (back substitution is just putting the x back into the equation and solving for y.)

4. Now you have your x and y coordinates, and the point of intersection of the two lines.

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Carlos has a $20 bill. He wants to buy his mom something for her birthday. He uses part of the

lukranit [14]

Answer:

D) $15.99 +$0.50n> $20

Step-by-step explanation:

3 0

3 years ago

Evaluate \dfrac{3}{2}+(-k)+(-2)

Dimas [21]

As I understand, we need to evaluate the given rational expression, we will get that the evaluated expression is equal to - 1/10

<h3>Evaluating expressions:</h3>

Evaluating an expression just means that we need to replace the variable in the expression for a given value, here we have the expression:

$\frac{3}{2} + (-k) + (-2)$

And we want to evaluate it in:

$k = -\frac{2}{5}$

So we just need to replace k by that value in the above expression, we will get:

$\frac{3}{2} + (-(-\frac{2}{5} )) + (-2)$

Now we can just solve this:

$\frac{3}{2} + (-(-\frac{2}{5} )) + (-2)\\\\\frac{3}{2} + \frac{2}{5} + (-2)\\\\\frac{15}{10} + \frac{4}{10} + (-2) = \frac{19}{10} - \frac{20}{10}= -\frac{1}{10}$

If you want to learn more about evaluating expressions, you can read:

brainly.com/question/4344214

4 0

3 years ago

How do i find joint relative frequency?

Svet_ta [14]

A joint relative frequency is found by dividing a frequency that is not in the Total row or the Total column by the frequency’s row total or column total.

3 0

3 years ago

39 is what percent of 60?

Fudgin [204]

The answer is 65%
You can find it by dividing 39 by 60 and you get .65 then multiply by 10 and you get 65!

Hope this helped and pls mark as brainliest!

~ Luna

3 0

3 years ago

Read 2 more answers

Whats the point of intersection between these two lines?<br><br>x+y=10<br>x+2y=14

Yakvenalex [24]

You have to make an equation that i forgot what was called but you just take
x+y=10 and multiply it by -2 so the y’s can cancel out

so you’ll end up with:

-2x-2y= -20
(+) x+2y=14

you’ll get : x = -6

then you plug in -6 for x, solve for y and your coordinates will be

(-6 , 10)

4 0

4 years ago

Read 2 more answers