20 PUNILS
An hourglass is turned over with the top part
filled with sand. After 3 minute...
Mathematics, 18.04.2020 04:11 ShundaBaker
20 PUNILS
An hourglass is turned over with the top part
filled with sand. After 3 minutes, there are 855
mm of sand in the top half. After 10 minutes,
there are 750 mm of sand in the top half.
Which equation represents this situation?
Answers: 1
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