This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A car is making a 12-mile trip. It travels the first 8.0 miles at 30 miles per hour and the last 4.0 ... (Read 181 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
on: Jul 29, 2018
A car is making a 12-mile trip. It travels the first 8.0 miles at 30 miles per hour and the last 4.0 miles at 60 miles per hour. What is the car's average speed for the entire trip?
 
  A) 36 mph
  B) 40 mph
  C) 44 mph
  D) 48 mph
  E) 52 mph

Question 2

A car is making a 12-mile trip. It travels the first 6.0 miles at 30 miles per hour and the last 6.0 miles at 60 miles per hour. What is the car's average speed for the entire trip?
 
  A) 20 mph
  B) 35 mph
  C) 40 mph
  D) 45 mph
  E) 50 mph


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

olivia_paige29

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


HCHenry

  • Member
  • Posts: 591
Reply 2 on: Jul 29, 2018
Wow, this really help

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

The procedure for making a karyotype. The procedure for making a karyotype.
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
Douglas Gordon, 24 Hour Psycho. Douglas Gordon, 24 Hour Psycho.
A typical engine design that uses both pressure and splash lubrication. Oil travels under pressure ... A typical engine design that uses both pressure and splash lubrication. Oil travels under pressure ...
Queen Nefertari Making an Offering to Hathor Queen Nefertari Making an Offering to Hathor
Food Miles in a Meal Food Miles in a Meal
Video: Semidiscontinuous DNA replication

For a complete list of videos, visit our video library