Bruce's Material Company hauls gravel to a construction sito, using a small truck and a large truck. The carrying capacity and operating cost per load are given in the accompanying table. Bruce must deliver a
minimum of 280 cubic yards per day to satisfy his contract with the builder. The union contract with his drivers requires that the total number of loads per day is a minimum of 10. How many loads should be
made in each truck per day to minimize the total cost?
Small Truck Large Truck
Capacity (yd) 40
70
Cost per Load
$69 $56
In order to minimize the total cost, the number of loads in a small truck that should be made is
and the number of loads in a large truck that should be made is

Runners run around the school's football field. the cross country coach determines that the width of the field is seventy yards shorter than the length. part a write an expression that represents the perimeter of the football field. let x represent the length of the football field. include parentheses in your expression. next, write an equivalent expression that does not include parentheses. what property or properties did you use to simplify? explain. part b the cross country coach later determines that the length of the football field is 120 yards. all students must run five laps. using your answer from part a, determine the actual number of yards that each athlete must run in the tryouts. in order to make the team, students must complete the laps in 6 minutes. how quickly must they run each lap?