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SpyIntel [72]
3 years ago
13

3x-4y=-5 y=4x-2 Is (1,2) a solution of the system?

Mathematics
1 answer:
Orlov [11]3 years ago
7 0
If you want to check if (1,2) is a solution to the system, you have to plug the x and y values back into both equations. If they work for one equation, but not the other, than the coordinates are not a solution to the system.

3(1) - 4(2) = -5
3 - 8 = -5
-5 = -5 

2 = 4(1) - 2
2 = 4 - 2 
2 = 2

Since both of these checks are true, then (1,2) is a solution to the system.
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AS a salesperson at trading cards unlimited Justin receives a monthly base pay plus commission on all that he sales. If he sales
Lelechka [254]
In this item, we will be able to form a system of linear equation which are shown below,
                                  292 = 400x + y
                                  407 = 900x + y
where x is the percent of the commission that he gets and y is the wage. The values of x and y from the equations are 0.23 and 200. This means that Justin earns a fixed wage of 200 per day and a commission which is equal to 23%. 

Substituting the known values to the equation,
                                   S = (0.23)(3200) + 200 = 936.

Therefore, Justin could have earned $936 had he sold $3,200 worth of merchandise. 
5 0
3 years ago
Istg if yall don't help me on this question <br> im not tryna fail
Ivanshal [37]

Answer:

eq.1 is x + y = 24

eq.2 is x - y =2

part c is

13 + 11= 24

and

13 - 11 =2

4 0
3 years ago
Figure S was drawn first and figure T was drawn second. What is the scale factor?
Morgarella [4.7K]

Answer:

The answer would be B

Step-by-step explanation:

All you have to do is multiply to see what its multiplied by to get the sizes of T Which is all by 4 so your answer is B

5 0
3 years ago
What is pm ⋅ pn equal to?
zimovet [89]

Answer:

p^2 pm pn mn

Step-by-step explanation:

Using the FOIL Method we get this result

p * p

p * n

p * m

m * n

5 0
3 years ago
Read 2 more answers
A triangle has sides with lengths of 5 millimeters, 8 millimeters, and 10 millimeters. Is it a right triangle?
Crank

Answer:

It is not.

Step-by-step explanation:

Using the Pythagorean Theorem, a squared + b squared = c squared, we get 25 + 64 = 100, and this is not true.

4 0
3 years ago
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