Emily had a book report due Friday, and she predicted how many minutes it would take her to finish. She spent 50 minutes doing the book report. Her prediction was 20% lower than that. How long had Emily predicted the report would take her?

Solution

Solution

Amount after reduction : 40

Solution steps

Translate the problem into an equation:

x = 50 - 0.2 \cdot 50

x = 50 - 0.2 \cdot 50 : x = 40

Amount after reduction : 40

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