a boat is 60 miles away from the marina, sailing direclty toward it at 12 miles per hr.  wtrite an equation for the distance of the boat from the marina , D after t hr

Alyssia is a pilot whose airplane travels 150 miles per hour when there is no wind. One day, it took Alyssia a total of t hours to fly 200 miles from airport A to airport B with a headwind of w miles per hour and then back from airport B to airport A with a tailwind of w miles per hour. Write an equation relating t and w. t = t = - t = 200 150-w 150 200-w 150 200-w 200 200-w + + + + 200 150+w 150 200+w 200 150+w 150 150+w

Solve the equation using a graphical method.   StartFraction t Over 3 Fraction minus one half equals StartFraction t plus 5 Over 9 EndFraction

A car is driving away from the base of an 80-meter-tall building. a. Write an equation relating x and y. b. Find the value of y when x = 60.