Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A truck 10 m long enters one end of a 170 m long tunnel and exits through the other end after 14.4 seconds.what was the speed of the truck in km per hour



Traveling downstream a certain boat went 21 mph. Traveling upstream it went only 5 mph. Find the speed of the boat in still water and the speed of the current.
0 0 0
180/14.4 * 5/18=25/7.2
25/7.2=3 17/36(whole number)

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts