An Olympic athlete run for x minutes at y metres a minute and walks for w minutes at z metres a minutes as part of his training schedule. If the length of the course is d metres, write a formula for d.

Answer 1

distance = speed * time, so

d = xy+wz

You can see this by watching the units.

xmin * ymeters/min = xy meters

Answer 2

Perfect, Thankyou so much