120000 X 0.14 = $16800 borrowed at 14%
18150 - 16800 = $1350 borrowed at 17%
If one of the roots is , then the other root is its conjugate . So we can factorize the quadratic to
Expand the right side and collect all the coefficients.
From the and constant terms, we have
From the second equation we get
Then
Since , we have
Answer: $351
Step-by-step explanation:
When dealing with added tax you're going to want to turn the percentage into a decimal which will make things a lot easier. 8% is going to be .08. When you turn the percentage into a decimal you want to multiply 325 by .08, this will tell you how much tax is being paid. 325 * .08 is 26, now all you have to do is add 26 to the original price and you'll have the final price which is 351.