The total bill for delivering 8 pairs of shoes is $240.
To calculate the total bill for delivering 8 pairs of shoes using the given equation y=40x+30, where y represents the total cost and x is the number of pairs of shoes, you substitute x=8 into the equation:
y=40×8+30
y=320+30
y=350
Therefore, the total bill for delivering 8 pairs of shoes is $350. The equation y=40x+30 represents a linear relationship where the cost increases by $40 for each additional pair of shoes delivered, and the $30 is a fixed cost component.
Complete ques:
The amount a shoe store charges in dollars to deliver x pairs of shoes can be modeled by the equation y=40x+30. If 8 pairs of shoes were delivered ,how much was the total bill?