Jessica played on the school chess team last year. She won 65% of the games She played. If She won 13 games, How many did She playi?
13 = .65 x
x = 13/.65 = 20
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To find the total number of games Jessica played, we can set up a proportion. Let's assume that Jessica played x number of games.
We know that she won 65% of the games she played, which can be written as 65/100 or 0.65 as a decimal. We can set up the proportion as follows:
(65/100) = (13/x)
To solve for x, we can cross-multiply:
65x = 100 * 13
Now, we can divide both sides of the equation by 65 to isolate x:
x = (100 * 13) / 65
Calculating the value on the right side:
x = 1300/65
x = 20
Therefore, Jessica played 20 games on the school chess team last year.