nus: 12. David competed in a 65-km dirt bike race. For the second half of the race he rode his bIke al average speed 16 km/h slower than in the first half. Let x represent David's speed in the first half. Determine a simplified expression in terms of x for the total time he took to complete the race. [3] а) If David rode his bike at an average speed of 35 km/h in the second half, how long did it take him to finish the race? [2] b)
nus: 12. David competed in a 65-km dirt bike race. For the second half of the race he rode his bIke al average speed 16 km/h slower than in the first half. Let x represent David's speed in the first half. Determine a simplified expression in terms of x for the total time he took to complete the race. [3] а) If David rode his bike at an average speed of 35 km/h in the second half, how long did it take him to finish the race? [2] b)
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
Problem 6P
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![aus:
12. David competed in a 65-km dirt bike race. For the second half of the race he rode his BIRE
average speed 16 km/h slower than in the first half.
Let x represent David's speed in the first half. Determine a simplified expression in terms
of x for the total time he took to complete the race.[3]
а)
If David rode his bike at an average speed of 35 km/h in the second half, how long did it
take him to finish the race? [2]
b)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd8ae987e-cf0b-49d5-9b00-91e199684789%2Fca5ec6ab-a1b3-4b99-a2b0-4c576e682228%2F2nuc77l_processed.jpeg&w=3840&q=75)
Transcribed Image Text:aus:
12. David competed in a 65-km dirt bike race. For the second half of the race he rode his BIRE
average speed 16 km/h slower than in the first half.
Let x represent David's speed in the first half. Determine a simplified expression in terms
of x for the total time he took to complete the race.[3]
а)
If David rode his bike at an average speed of 35 km/h in the second half, how long did it
take him to finish the race? [2]
b)
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