The lengths of three sides of a triangle are in the ratio 3 : 4 : 5. the perimeter of the triangle is 156 centimeters. what is the difference in length between the longest and shortest sides?

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Need solving this second acceleration problem.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}