Charlie drove 864 miles in 12 hours. at the same rate, how long would it take him to drive 504 miles?
2 answers:
We can solve this by setting up a proportion where 864/12 = 504/x. We cross multiply and get 864x = 504 * 12. So 864x = 6048. Divide by 864 on both sides, x = 7.
The answer is 7 hours.
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