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Mathematics, 26.01.2020 18:31 youngbeauty17

Emily is picking strawberries at a speed of 3 strawberries per second. her little sister sophia joins emily when there are 20 strawberries in emily's basket and starts to eat these strawberries at a speed of 5 strawberries per second. when sophia finally leaves, there are 8 strawberries in the basket. how long did sophia stay with emily?

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Emily is picking strawberries at a speed of 3 strawberries per second. her little sister sophia join...
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