Answer:
Step-by-step explanation:
![2(x-2)^2=8(7+y)\\2(x-2)^2=56+8y \Rightarrow y={1\over{8}}[2(x-2)^2-56]={1\over{4}}(x-2)^2-7\\finally\\y={1\over{4}}(x-2)^2-7\\let ~change~x~and~y\\x={1\over{4}}(y-2)^2-7\\x+7={1\over{4}}(y-2)^2\\4(x+7)=(y-2)^2\\y-2=\pm\sqrt{4(x+7)}\\\\y=2\pm\sqrt{4x+28}](https://tex.z-dn.net/?f=2%28x-2%29%5E2%3D8%287%2By%29%5C%5C2%28x-2%29%5E2%3D56%2B8y%20%5CRightarrow%20y%3D%7B1%5Cover%7B8%7D%7D%5B2%28x-2%29%5E2-56%5D%3D%7B1%5Cover%7B4%7D%7D%28x-2%29%5E2-7%5C%5Cfinally%5C%5Cy%3D%7B1%5Cover%7B4%7D%7D%28x-2%29%5E2-7%5C%5Clet%20~change~x~and~y%5C%5Cx%3D%7B1%5Cover%7B4%7D%7D%28y-2%29%5E2-7%5C%5Cx%2B7%3D%7B1%5Cover%7B4%7D%7D%28y-2%29%5E2%5C%5C4%28x%2B7%29%3D%28y-2%29%5E2%5C%5Cy-2%3D%5Cpm%5Csqrt%7B4%28x%2B7%29%7D%5C%5C%5C%5Cy%3D2%5Cpm%5Csqrt%7B4x%2B28%7D)
Answer: $40.00
Step-by-step explanation:
To find the original price, you would need to utilize the equation Original Price = Sales Price ÷ (1 - Discount). In this equation, Discount refers to the percentage of discount.
Original Price = $34.00 ÷ (1 - 0.15)
Original Price = $34.00 ÷ (0.85)
Original Price = $40.00
Answer:
-5 = x
Step-by-step explanation:
First you begin with adding 5 to the other side of the equal sign.
Why? because you want to get "x" by itself, in other words, isolate the variable. and by adding 5 you make 0 on that side
So -10+5 = 5
Therefore -5 = x
5 pounds of pork will be your answer
So we have W/-1.3 (w over -1.3) then = -6.2
It would look like: W/-1.3 = -6.2
Put -6.2 over 1 so it looks like W/-1.3 = -6.2/1
Then cross multiply so W x 1 is W
-6.2 times -1.3 is 8.06
Therefore, W is 8.06
