Answer:
(6,2)
Step-by-step explanation:
all steps are shown and pictured
squaring something multiplies it by itself. -4^2 = -4*-4 = 16
To find the markup, substract the price at which the car was bought from the price at which the car was sold:
![26,808-20,480=6328](https://tex.z-dn.net/?f=26%2C808-20%2C480%3D6328)
To find the markup as a percentage from the original price, set 20,480 to be equal to 100%. If <em>x%</em> represents 6328, then:
![\begin{gathered} \frac{x}{6328}=\frac{100}{20,480} \\ \Rightarrow x=\frac{100\times6328}{20,480}=30.898\ldots \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Cfrac%7Bx%7D%7B6328%7D%3D%5Cfrac%7B100%7D%7B20%2C480%7D%20%5C%5C%20%5CRightarrow%20x%3D%5Cfrac%7B100%5Ctimes6328%7D%7B20%2C480%7D%3D30.898%5Cldots%20%5Cend%7Bgathered%7D)
To the nearest tenth, 30.898... = 30.9.
Therefore, the markup is equal to 30.9%.
Answer:
These equations are equivalent because after you solve the equation the answer are the same. For example 2+2 and 3+1 are equivalent. They both equal four. In these problems are x=3 and x=3.5 they are the same beause of the answer on problem 2 6-x. That makes them both have the same answer
Step-by-step explanation:
7x-9=12
+9=+9
7x=21
/7=/7
x=3