Homework Help: math

Posted by #OddKidd; on Wednesday, May 16, 2012 at 11:21am.

Selma reached into a coin jar, randomly pulled out 100 coins, and found that 20 of them were nickels. If the jar originally contained 250 coins, what would be a reasonable estimate for the total number of nickels originally in the jar before Selma took any out?

math - Ms. Sue, Wednesday, May 16, 2012 at 11:55am
20/100 = x/250

100x = 5000

x = 50

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