SOLUTION: a mother has to buy 18 chocolates for some children. some cost 3.50 and the remainder cost 5.70. calculate the least number of chocolates she can buy at 3.50 each if the total cost
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Question 966793: a mother has to buy 18 chocolates for some children. some cost 3.50 and the remainder cost 5.70. calculate the least number of chocolates she can buy at 3.50 each if the total cost to her must be less than or equal to 76.50 Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! a mother has to buy 18 chocolates for some children. some cost 3.50 and the remainder cost 5.70. calculate the least number of chocolates she can buy at 3.50 each if the total cost to her must be less than or equal to 76.50
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let x=number of chocolates that cost 3.50 each
18-x=number of chocolates that cost 5.70 each
3.50x+5.70(18-x)≤76.50
3.50x+102.60-5.70x≤76.50
-2.20x≤-26.10
x≥11.86
The least number of chocolates mother can buy at 3.50? 12
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