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snow_tiger [21]
4 years ago
11

2х - Зу = 165x - Зу = 13​

Mathematics
1 answer:
Alex787 [66]4 years ago
8 0

Answer:

[-1, -6]

Step-by-step explanation:

Since both coefficients next to your <em>y</em><em>'</em>s are identical use the Elimination Method by multiplying one of the equations by -1 to form <em>additive </em><em>inverses</em><em>,</em><em> </em>meaning they result in 0:

-1[{2x - 3y = 16}]↷

{5x - 3y = 13}

{-2x +<em> </em>3y = -16

{5x - 3y = 13

----------------

3x = -3 [Divide by 3]

x = -1

y = -6 [plug in "-1" back into both equations to confirm their authenticities]

https://youtu.be/zcC7wsn3b2g

Watch the above You-Tube link and subscribe for more information on how to solve a system of equations in two to three variables [USERNAME: MATHEMATICS WIZARD].

I am joyous to assist you anytime.

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Jason went to a carnival where he could goon all rides for a flat fee of $30 but he had to pay $2 for each arcade game he played
enot [183]

Answer:

He played 7 arcade games.

Step-by-step explanation:

The amount paid in relation to the number of games played can be modeled by a linear function in the following format:

A(n) = F + gn

In which F is the flat rate and g is the price of each game.

Flat fee of $30 but he had to pay $2 for each arcade game he played.

This means that F = 30, g = 2

So

A(n) = 30 + 2n

Jason spent $44. How many arcade games did he play?

This is n for which A(n) = 44. So

A(n) = 30 + 2n

44 = 30 + 2n

2n = 14

n = \frac{14}{2}

n = 7

He played 7 arcade games.

4 0
3 years ago
The sum of two numbers is 36 and the difference is 10. What are the numbers
Lady bird [3.3K]

Answer:

The 2 numbers are 13 and 23

Step-by-step explanation:

If 2 numbers are x and y we have:-

x + y = 36

x - y = 10

Adding:-

2x = 46

x = 23

So y = 36 - 23 = 13

3 0
4 years ago
Read 2 more answers
Age of car = 8 years. Original cost = $18,000. The cost of maintenance and repairs is $
creativ13 [48]

From the graph it seems to be around the area of 10%.

So,

18,000 * 0.10 = $1,800

5 0
3 years ago
Evaluate j/k -0.2k when j =25 and k = 5
denis-greek [22]
When you have an equation that has variables and you know the value of those variables, just plug it it. So plugging the vaules we get
\frac{25}{5}-\frac{1}{5}5
Just evaluating we get 4
5 0
3 years ago
Read 2 more answers
The correct answer is a right?
svetoff [14.1K]

We can see that a and b are parallel, and c and e are parallel, so the correct option is E.

<h3>Which line must be parallel?</h3>

On the diagram, we can see that the angles in the third quadrant of the intersections between a and c, and the intersections between b and c,  are the same angle.

Then, lines a and b must be parallel.

For the intersections with line d, we can see that this time the angle is on the fourth quadrant, so c and d are not parallel.

Finally, for line e, we can see that the known angle is on the first quadrant.

Notice that the angle on the first quadrant will be equal to the angle on the third quadrant.

So for the intersections of a and e, and b and e, on the third quadrant we have the known angle (the same one as in the intersections of a and c, and a and b).

Then c and e are parallel.

Then A and C are true.

Thus, the correct option is E.

If you want to learn more about parallel lines:

brainly.com/question/24607467

#SPJ1

5 0
2 years ago
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