QQuestionMathematics
QuestionMathematics
"A speed limit of 100 kilometers per hour (kph) is approximately equal to 62 miles per hour (mph). Write an equation relating kilometers per hour, k, to miles per hour, m. Then predict the following measures. Round to the nearest tenth.
a) A speed limit in mph for a speed limit of 75 kph.
b) A speed limit in kph for a speed limit of 20 mph.
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Answer
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Step 1Let's solve this problem step by step:
Step 2: Establish the Conversion Relationship
- $$k$$ represents kilometers per hour
We know that 100 kph ≈ 62 mph. We can create a linear conversion equation: Where:
Final Answer
a) 46.5 mph b) 32.3 kph
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