On that drive, Tony's interstate speed was:
A85 mph
B65 mph
C55 mph
D75 mph
Answer & Solution
Correct answer: B. 65 mph
1. It is 15 mph faster than the country roads.
2. The country speed was 50 mph.
3. The interstate speed was 65 mph.
_Source: OpenStax Elementary Algebra, Chapter 8, Solve Uniform Motion and Work Applications._
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