Here's a good old, straight-up algebra problem:
My answer is between the brackets below. Highlight to see.
[The problem says: (4/π)/69 = 4/(x/69), so we have to solve for x. This converts to the equation
(4/π)•(1/69) = (4/1)•(69/x)
In other words,
4/69π = (69•4)/x.
Get rid of the 4s through division:
1/69π = 69/x.
Multiply by x:
x/69π = 69.
Multiply by 69π:
x = 692π, or
x = 4761π.
QED.]
My brain might be Strokey McStrokington, but I can still do basic math.
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