Question

3.Ellen works for a high-speed rail company that wants to develop a new rail line. Ellen’s project is to find a train that is the second fastest in the world. The Shinkansen Bullet Train in Japan is reported to go as fast as 320 kilometers per hour. The TGV train in France can reach speeds of 89.44 meters per second. Explain to Ellen how to find what speed her new train must go to be the second fastest in this group. Then, find an appropriate speed for Ellen’s train in miles per hour and use the formula distance = speed • time to find how far the train can go in 2.5 hours. Use complete sentenc

Answer 1

You must find the spreed of BOTH trains in MILE PER HOUR. Explain to Ellen how to find what speed her new train must go to be the second fastest in this group. Then, find an appropriate speed for Ellen’s train in miles per hour and use the formula distance = speed • time to find how far the train can go in 2.5 hours

Answer 2

320km1hr⋅0.621371mile1km That one is almost done. You finish this up and then do the other one.

Answer 3

Look at the units. Most importantly, km/km leaves you with mile/hr
0.621371 mi / 1 km = 1 -- It does not affect the value of the original expression. It just changes the units.

Answer 4

o, 198.839 mph < Ellen < 200.069 mph ?

Answer 5

THANKS !!! @redheadangel

Answer 6

No prob!