Algebra II question, I've tried everything above and beyond unit conversions and I cannot figure this out. If someone would explain to me how to do this problem I would be very greatful. The lesson this homework is based off of is based on Direct / Inverse variations.
You are going to drive 480 miles today at an average speed of 60 miles per hour. Thus you are going to drive for a total of (8) hours. The diameter of the wheels on your car (including tires) is 25 inches. Thus each wheel is going to turn a total of _______ times today.
Thanks both of you. For e^'s formula, I would plug in 78.5 for C (having done 25 * pi) then multiply it by 63360 / 1 mile to convert it into inches, right? Then the answer for Nc would be
Nc = 480 / 78.5 * 63360 / 1, which = 10362 revolutions. Is this correct?
Ah, I found my error in the above post. In the above post I attempted to cross multiply, which I do not have to do. After doing
Nc = 480 / 78.5 * 63360 / 1
I got 387424 as my answer, which is correct. Thanks to both of you for helping me with this. The whole concept is still a bit foggy, but I'm getting it.