5 x + 3 y = 41 / * 3
3 x + 2 y = 26 / * ( - 5 )
-----------------------------
15 x + 9 y = 123
+
- 15 x - 10 y = - 130
---------------------------
- y = - 7 / * ( - 1 )
y = 7
Answer:
Each program costs D ) $7

7 0

2 years ago

Read 2 more answers

What is the slope of the line represented by the equation y=4/5x-3?

lawyer [7]

4/5 is the slope. When you isolate the y on one side of a linear equation, whatever number is with the x value is your slope.

4 0

3 years ago

Read 2 more answers

Find a solution to the system. Make sure to write as a coordinate.

RUDIKE [14]

Answer:

x=2, y=3

Step-by-step explanation:

This is a system of equations.

To solve a system of equations, we use the substitution method.

We can plug in the first equation, $x=2y-4$ , into the value for x in the second equation. Now, the second equation looks like this:

$2*(2y-4)+y=7$

We simplify and solve for y:

→ $4y-8+y=7$

→ $5y=15$

→ $y=3$

Now, we plug in the value for y, which is 3, into either equation. I will just use the first equation:

→ $x=2*3-4$

→ $x = 2$

Let me know if my explanation is unclear.

3 0

2 years ago

Solve the following please:

dalvyx [7]

Answer:

most likely b

Step-by-step explanation:

the more than symbol tells me that it is going to move past 10.

8 0

1 year ago