lighting electronics charges $9.98 plus $0.75 per pound to ship electronics purchases. Write and solve an equation to find the weight in pounds of a DVD player for which the shipping charge is $18.23
Let x be the weight in pounds of the DVD player.
The shipping charge is $0.75 per pound, so the additional cost is 0.75x.
The total shipping charge is the sum of the additional cost and $9.98, which is $18.23.
So the equation to solve is 0.75x + 9.98 = 18.23.
Subtracting 9.98 from both sides of the equation, we get 0.75x = 8.25.
To solve for x, we divide both sides of the equation by 0.75, giving us x = 11.
Therefore, the weight in pounds of the DVD player is 11 pounds.