Asked by vanessa
the weight of a 12kg fat cat reduces by 10% each month. how long does it take for the cat to be at least 6kg lighter than its original weight? give your answer as a whole number of months.
Answers
Answered by
oobleck
12 * 0.90^x = 12-6
0.90^x = 0.5
x = log0.5/log0.9 = 6.56 months
0.90^x = 0.5
x = log0.5/log0.9 = 6.56 months
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