Answer:
$1628
Step-by-step explanation:
A laptop computer was marked up 100% from an original cost of $740.
Marked up price = 100% of $740
= $740
Current price of the Laptop = Initial price of the Laptop + Marked up price
= $740 + $740
= $1480
Last Friday, Judy bought the laptop computer and paid an additional 10% in sales tax. What was her total cost?
Sales tax = 10% of the cost of laptop
= 10% × $1480
Sales tax = $148
Judy's total cost = Price of the Laptop + Sales tax
= $1480 + $148
= $1628
A radical expression has to do with finding the square root, or the factors of a number. However these factors are the same number, which is why a radical expression is different from a regular divisions equation. (hope this helped :) )
I think there are no solutions - firstly, you can't add two numbers and get one solution, and add the same two numbers up again and get a different solution!
also, if you plot the two lines on a graph they never intersect, showing there are no values of x or y that satisfy both equations.