Answer:
Step-by-step explanation:
When the equations are written in the same form, the ratio of x coefficient to y coefficient is the same for parallel lines.
These equations in the same form are ...
- 3x +y = -2
- -6x +2y = 4
- 6x +2y = -8
The first and last of these equations have a ratio of x-coefficient to y-coefficient of ...
(x-coefficient)/(y-coefficient) = 3/1 = 6/2
so the lines are parallel.
The second equation has a ratio that is the opposite of this.
__
<em>Alternate approach</em>
You can put each equation into slope-intercept form (solve for y). The x-coefficient is then the slope of the line. Parallel lines** have equal slopes.
- y = -3x -2 **
- y = 3x +2
- y = -3x -4 **
_____
I find a graphing calculator to be a big help for many problems involving equations and their characteristics.
Answer:
10/3 or 3 1/3
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
0.5(n-4)-3=3-(n+3)
First, you would do the distributive property:
0.5n-2-3=3-n-3
Then you would simplify and then solve.
0.5n-5=-n
-5=-1.5n
n=5/1.5
n=10/3 or 3 1/3
(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥
Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!
Answer:
A) 6.25x+7.50=26.25
Step-by-step explanation:
To find how much she payed for every round she played (woah that rhymed) you multiply 6.25 by the amount of rounds she played, which is x.
That's where we get 6.25x
7.50 is the base cost, so she will pay that much regardless of how much she played.
26.25 is the total amount of money spent. The admition cost and how much she spent on playing ads up to her total cost
X=1/5+2/5√14 or 1/5 + -2/5√14
This shows that Marco can buy at most 5 pencils
<h3>Inequalities</h3>
- Let the price of each pencil Marco can buy be "x"
If the cost of markers is $4, and the cost of each lead pencil is $3 with at most $15 spent, hence;
Subtract 4 from both sides
3x ≤ 15
x ≤ 15/3
x ≤ 5
This shows that Marco can buy at most 5 pencils
Learn more on inequalities here:
brainly.com/question/24372553