Faith spent the first 120 miles of her road trip in
traffic. When the traffic cleared, she
was able to drive twice as fast for the remaining 300
miles. If the total trip took 9 hours, then how fast
was she moving in traffic
traffic. When the traffic cleared, she
was able to drive twice as fast for the remaining 300
miles. If the total trip took 9 hours, then how fast
was she moving in traffic
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ANSWER
Faith was traveling 20 miles per hour during traffic.
EXPLANATION
Given:
• 2x hours spent during the first 120 miles.
• x hours spent for the remaining 300 miles.
Solution:
Step 1: Add the hours spent in traveling then equate to 9 hours.
2x + x = 9
↓
3x = 9
↓
x = 3
Step 2: Find the hours spent during the first 120 miles(or during traffic).
x = 3
↓
2x = 2(3) = 6
6 hours spent during the first 120 miles
Step 3: Use Rate Formula.
↓
↓
Answer:
Faith was traveling 20 miles per hour during traffic.
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