Atrain travels at a speed of 58.6 km'hi Express this speed
a. ms
b. m/min

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39