Megan has run many marathons and keeps track of all of her finishing times. At her most recent race, she finished in 297 minutes. That is 10% longer than her previous race. What was Megan's finishing time at the previous race?

Solución

Solución

Amount before addition : 270

Pasos de solución

Translate the problem into an equation:

297 = x + 0.1 x

297 = x + 0.1 x : x = 270

Amount before addition : 270

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