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Guest
Guest
Hello! I've tried solving this problem using ratios, proportions, and even pi, but I just can't come up with anything that makes sense! Here's the problem:
You travel to the mountains in a car and the tripometer reads 450 miles. On the way home, you take the exact same route but with snow tires on the car. This time, the tripometer reads 440 miles. Find the radius of the snow tire, if the radius of the original tires is 15 inches. (Use exact form)
So, exact form means no rounding, just a fraction/radical etc.... and I've tried 450/15=440/x, but I didn't get anything reasonable... I also tried calculating the circumference of the orignial tire, and comparing that to the new milage... but again no luck. Thanks SO much for any help you can provide!
You travel to the mountains in a car and the tripometer reads 450 miles. On the way home, you take the exact same route but with snow tires on the car. This time, the tripometer reads 440 miles. Find the radius of the snow tire, if the radius of the original tires is 15 inches. (Use exact form)
So, exact form means no rounding, just a fraction/radical etc.... and I've tried 450/15=440/x, but I didn't get anything reasonable... I also tried calculating the circumference of the orignial tire, and comparing that to the new milage... but again no luck. Thanks SO much for any help you can provide!