An online retailer charges $699 plus $0.55 per pound o ship electronics purchases. How many pounds is a DVD player for which the shipping charge is $11.94?
1 Answer
Dec 15, 2016
The answer is approximately
Explanation:
-
Write a "let" statement:
Let the variablex represent the number of pounds of an item. -
Create an equation:
Since it costs$0.55 /pound, we can use the expression0.55x to represent the shipping cost of an item that isx pounds. In addition, since you want the total to be$11.94 , you can set the equation to be:0.55x = 11.94 -
Solve for
x :
In order to do this, we have to isolatex . We can do this by dividing each side by0.55
(cancel0.55x)/cancel0.55 = 11.94/0.55" " the two0.55 's cancel out. -
In the end, we are left with roughly
x = 21.71 , which means that the DVD player is approximately21.71 pounds.