Question

1. An iron bar weighs 1.965 pounds per foot. Determine the cost of an iron bar 15 feet 9 inches long when the price of iron is 7.5¢ per pound.

Answer 1

The cost of the iron bar is $2.31.

Step-by-step explanation:

To determine the cost of the iron bar, we first need to convert the length to only inches. 15 feet 9 inches is equal to 189 inches (15*12+9=189). Next, we calculate the weight of the iron bar by multiplying its weight per foot (1.965 pounds) by the length in feet (15.75). This gives us a weight of 30.78825 pounds. To find the cost, we multiply the weight by the price per pound (0.075 dollars). Therefore, the cost of the iron bar is $2.31.

Learn more about Calculating the cost of an iron bar