SOLUTION: please help me with the equation: The price of petrol is continuing to rise and fall each month. If petrol cost $14,90 a litre in the first quarter and then decreased by 2% in th
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Question 1090468: please help me with the equation: The price of petrol is continuing to rise and fall each month. If petrol cost $14,90 a litre in the first quarter and then decreased by 2% in the second quarter and went up by 6% in third quarter and 4% in last quarter, what is the price of petrol in the last quarter? In each quarter work to the nearest cent.
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
First, the petrol falls 2%, leaving 98% behind. Then, it rises by 6%, and is then worth 1.06 times what it was before. Then it goes up by 4%, or 1.04 times what it was before. So, the final price is:
14.90x(0.98)x(1.06)x(1.04)=1.080352 x 14.90
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