Answer:
$210
Step-by-step explanation:
The first thing we can do is to add the $25 back on to the total cost.
25 + 115 = 140.
We do this because he Sam used a gift certificate on the ski's that are already 2/3 of the original price.
Now, to find the original price we can use this equation:
[tex]\frac{2}{3} x = 140[/tex]
X represents the original price.
To solve this equation you would flip 2/3 to 3/2 and multiply that by 140, as seen below:
[tex](\frac{3}{2}) \frac{2}{3}x = 140 (\frac{3}{2})[/tex]
Now you can solve:
[tex]x = \frac{420}{2} \\x = 210[/tex]
We can check this answer by multiplying 210 by 2/3
(210)(2/3) = 140
Remember, Sam used a gift certificate for $25
140 - 25 = $115
Therefore, the original price of the skis is $210.
I hope this helps!!
- Kay :)
