To solve the problem we will use this equation where,
d will be distance. x is the speed of the plane without tailwind. y is the speed of the wind affecting the plane. Going to Philadelphia the speed of the plane affected by wind will be x-y=220 miles/hr Coming back with a tailwind, the speed of the plane will be x+y= 280 miles/hr. since time = distance / speed, t1 =d/220 and t2 = d/280 and since the total time traveled is 6.5hrs d/220 + d/ 280 = 6.5hrs d = 800.8 miles x 2 (back and forth trip) the answer is 1601.6 miles
The area is 21cm squared. u would have to find the length of the bottom triangle which is 14. than multiply that by the height which is 3. finally divide that all by 2 and youll get the area
