You need to solve this "system of linear equations." In other words, find a point (x,y) that satisfies both 4x-3y=17 and 2x-5y=-11.
Try solution by elimination. Multiply the 2nd equation by -2 to obtain -4x+5y=22. Add this result to the 1st equation. I'd suggest you write this out to see what is happening.
4x-3y=17
-4x+10y=22
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7y=39. Solving for y, we get y=39/7 (a rather awkward fraction).
Now find x. To do this, substitute 39/7 for y in either of the given equations. Solve the resulting equation for x.
Write your solution in the form (x, y): ( ? , 39/7).
1.) Sales Price - Original Cost / Sales Price * 100 = Percentage Markup
2.) Now substitute the values:
Sales Price - Original Cost / Sales Price * 100 = Percentage Markup
$22.95 - $17.45 / $22.95 * 100 = Percentage Markup
$5.5 / 22.95 * 100 = Percentage Markup
. .2397 * 100 = 23.97%
3.) Therefore, the store uses 23.97% as Percentage Markup
Answer:
<h2><u><em>
8x -2</em></u></h2>
Step-by-step explanation:
Subtract:
-6x-3 from 2x-5
2x - 5 -(-6x - 3) =
2x - 5 + 6x + 3 =
8x -2
