Monica bought 3 1/ 2 pounds of hamburgers for $14. What was the cost per pound?

Answer 1

3&(1/2) equals 7/2. Since she spend 14 dollars for 7/2 pounds the prices, x, of 1 pound should be the solution to the equation (7/2)x=14 or in other words x=28/7=4. So the price of 1 pound is 4 dollars.