Question 1103544
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At 12:06 there are 90 gallons.<br>
After that, 15 gallons per minute are being added , but 35 gallons per minute are being drained.<br>
At what rate is the number of gallons decreasing per minute after the drain is opened?<br>
Write the equation that tells how many gallons there were at the start (at 12:06) and by how many gallons that number is decreasing each minute.