Zachary used the calculations shown to find how much he would spend on 16 ounces of pistachios.
6 ounces of pistachios cost $7.50
StartFraction 7 dollars and 50 cents Over 6 ounces EndFraction = StartFraction dollar-sign question mark Over 1 ounce EndFraction
Unit price = $0.80 per ounce
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Answers
Given : Zachary used the calculations shown to find how much he would spend on 6 ounces of pistachios.
6 ounces of pistachios cost $7.50
7 .5 $ / 6 = ? $ /1 ounce
Unit price = $0.80 per ounce
To Find : What Error he made
The price per ounce should have been $45.00 per ounce.
The price per ounce should have been $1.25 per ounce.
The final cost should have been $20.00.
The final cost should have been $16.80.
Solution:
6 ounces of pistachios cost $7.50
Unit price = 7.5/ 6 = 1.25 $ per ounce
The price per ounce should have been $1.25 per ounce.
Error made :
6/7.5 = 0.8 $ ( Zachary Divided 6 by 7.5 instead of Dividing 7.5 by 6 )
The price per ounce should have been $1.25 per ounce.
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