The Grand Canyon is approximately 29 kilometers long. Mariner Valley is a canyon on Mars that is approximately 212 kilometers long. About how many times longer is Mariner Valley than the Grand Canyon?

• : Grand Canyon = 29 km
  Mariner Valley = 212 km
  
  Number of times longer = 212 ÷ 29 = 7.31 times (Nearest hundredth)
  
  Answer: 7.31 times
• ApusApus:

  Answer:

  7.31 times.

  Step-by-step explanation:

  We have been given that Grand Canyon is approximately 29 kilometers long. Mariner Valley is a canyon on Mars that is approximately 212 kilometers long.

  To find the number of times Mariner Valley is longer than the Grand Canyon, we will divide 212 by 29.

  [tex]\frac{212}{29}=7.3103448\approx 7.31[/tex]

  Therefore, the Mariner Valley is 7.31 times longer than the Grand Canyon.