It raind during 40% of the days of chrissys vacation. if it rained on 2 days how many days long was chrissys vacation

Chrissy's vacation would have been 5 days total. To find this, you can set up a proportion. I did 40 over 100, (40%), equals 2 over x. You cross multiply 2 and 100. You take that number, 200 in this case, and divide it by 40 to get the variable by itself. This would leave you with what the variable equals, 5.

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