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A single cell doubles every 15 minutes. how long until you have 500 cells

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7,500 minutes. If you use proportions, you can use the time as the numerator and the # of cells as the denominator. So, 15 goes over 1 and ,since we don't know the time,"x" goes over 500. Then you cross multiply and end up with x=7500
A single cell doubles every 15 minutes. how long until you have 500 cells-example-1
User Dweeves
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