a bottle contains 20 fluid ounces of lotion and sells for $5.80. The 20-fluid-ounce bottle contains 125% of the lotion in the ne xt smallest size, which sells for $5.12. Which is the better buy? Explain
2 answers:
The 20 fluid ounce because you get more for .78 cents more
Here is a way to solve wihtout knowning the volume of the smaller bottle (which is 16oz, btw) if 5.8 is 125% of the volume of the other one find what it would cost for 100% 5.8=125% of volume 1.16=25% of volume 4.64 that contains the sameamount as theother one 4.64<5.12 the 20 oz bottle is the better buy don't believe me? 20=125% of other 4=25% of other 16=100% of other let's find the cost per ounce of lotion 5.8/20?5.12/16 where ? represents a relation symbol (=,> <) 0.29?0.32 0.29<0.32 20 oz bottle is the better buy
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