A company distributes its product by train and by truck. The cost of distributing by train can be modeled as -0.06x2 + 35x - 135, and the cost of distributing by truck can be modeled as -0.03x2 + 29x - 165, where x is
the number of tons of product distributed. Write a polynomial that represents the difference between the cost of
distributing by train and the cost of distributing by truck.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

the shape,the size and the distance