Atest driver has to drive a car on a 1-mile track for two rounds in a way, that his average speed is 60 mph. on his first round his average speed is 40 mph. how fast does he need to drive, to get the right speed average?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

Why is studying fractions important

What is r i 4.5+10r=-6.5 with work pls