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6 votes
A boat can travel 77 9/16 nautical miles in 8 1/2 at how many knots is the boat traveling ​

User Sreedhar S
by
3.2k points

2 Answers

12 votes

Hi there!

Simplify each terms:


77(9)/(16)*8(1)/(2)=77(9)/(16)*8(8)/(16)

Divide each terms:


77(9)/(16)*8(8)/(16)=9(2)/(16)

Simplify terms:


9(2)/(16)=9(1)/(8)

Final Result:


9(1)/(8)

User Joshua G
by
4.1k points
8 votes

Divide miles by time:

77 9/16 miles / 8 1/2 hours =

Rewrite as I’m proper fractions:

1241/16 / 17/2

Flip the second fraction over and multiply:

1241/16 x 2/17 = (1241x2)/(16x17) =

2482/272 = 9 1/8 miles per hour

User Apatry
by
3.3k points