Your younger brother starts up a lemonade stand early one morning. At 1 PM, there were 70 cups left and at 4 PM, there were 41. How many were there at 6 AM when he started if time t is proportional to the number of cups left? dy Hint: Use the equation =ky, where y is the number of cups, t is the time in hours, and k is a constant. a) 20 cups b) 137 cups c) 194 cups d) 243 cups e) Answer is not there
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b) 137 cups
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