7x+(x+20)=180
Just simplify. Hope this helped:)
Answer:
(x+2) (5x)
Step-by-step explanation:
the way I factor is the products of a*c added together equals b. so the products if (5*2) 10 equals 11. so 10 and 1 are the 2 products that add into 11. Now we put that into the equation. 5x^2+10x+1x+2 now take the two haves until you can't factor them any more 5x(x+2) (x+2). now take the repeated factor and outside factors to get (5x) and (x+2)
There two forms to write an equation in; slope-intercept form, <em /><em>y</em> = <em>mx</em> + <em>b</em>, where <em>m</em> is the slope and <em>b</em> is the <em>y</em>-intercept; and point-slope form, which is given by

, where <em>m</em> is the slope and (<em>x</em>₁, <em>y</em>₁) is a point on the line. Given the information and instructions you have I assume you need point-slope form. For #1, you have <em /><em>m</em> = 2 and point (3, 5). Substitute these values in:

If you need slope-intercept form, you start by using the distributive property on what you just wrote:

Now cancel the 5 to isolate <em>y</em>:
Answer:
12
Step-by-step explanation:
335 + 13.75x = 500
Subtract 335 from each side
13.75x = 165
Divide each side by 13.75
x = 12
You can attend 12 dance classes with $500.
You can use the slope formula to figure this out, or you can just use common sense.
m(slope)=y2 - y1 / x2 - x1
Two points of the line are (3,1) (5,-3)
(-3 - 1) / (5-3) = -4 / 2 = - 2
Or you can just do rise over run (slope).
The line goes right 1 (run) and down 2 (rise)
Down 2 = -2
-2/1, or -2
-2 is your answer.