Yoohoo, hey, I have another ridiculously complicated problem that has two parts to it but it's easier than the previous question (if you read that one)
To get to school from home, Lana has to cycle one mile up a hill and one mile down the other side. She averages 10mph on the way up the hill.
Part the first: What constant speed must Lana go down the hill if she wishes to average 12mph for the whole journey?
Part the second: Explain why it's impossible for Lana to average 20mph for the entire journey.
I knooowwwww, so weird, but hey, if you think you can solve it, its a free medal and

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sawry, there wasn't enough space, lol

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