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20 October, 20:55

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

(16 ounces) (StartFraction 80 cents Over 1 ounce EndFraction) = 12 dollars and 80 cents

What was his first error?

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Answers (1)
  1. 20 October, 22:58
    0
    He made a math error

    Step-by-step explanation:

    6 ounces of pistachios cost $7.50

    take 7.50 / 6=1.25 per ounce (not. 80 per ounce)

    Then 1.26 * 16 = 20.00 for 16 ounces
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