Question

francis has 11 bottles containing 8 ounces of water each. he multiplies to determine that he has 88 ounces of water total. which addition equation could he use to check his answer? 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = 88 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = 64 8 + 11 = 19

Explanation:

Step1: Understand the problem

Francis has 11 bottles, each with 8 ounces of water. To check the total (88 ounces), we can represent the total as the sum of 11 eights.

Step2: Analyze each option

• Option 1: \(8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8\) (11 eights) sums to \(8\times11 = 88\).
• Option 2: The sum here is of 8 eights, \(8\times8 = 64\), not 88.
• Option 3: \(8 + 11 = 19\) is incorrect as it's adding the number of bottles and ounces per bottle, not the total ounces.

Answer:

The equation \(8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = 88\) (the second option in the list of equations shown, with 11 eights added)