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allieeastridge
27.06.2019 •
Mathematics
Abreakfast cereal is available in four different sizes. which is the best buy ? a. 10-ounce box for $2.80 b. 16-ounce box for $3.75 c. 24-ounce box for $4.50 d. 30-ounce box for $5.25
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Ответ:
D. 30-ounce box for $5.25 is the best buy
Step-by-step explanation:
To determine which is the better buy, we need to determine the unit rate for each. We will take the price and divide by the number of ounces. The best price is the smallest price per ounce.
A. 10-ounce box for $2.80
$2.80/10 = $.28 per ounce
B. 16-ounce box for $3.75
$3.75/16 = $.234375 per ounce
Rounding to the nearest cent
$.23 per ounce
C. 24-ounce box for $4.50
$4.50/24 = $.1875 per ounce
Rounding to the nearest cent
$.19 per ounce
D. 30-ounce box for $5.25
$5.25/30 =$.175 per ounce
Rounding to the nearest cent
$.18 cent per ounce
Ответ:
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