Question

question 7
it takes 1.3 fluid ounces of water to fill each water balloon. lamar uses 54.6 fluid ounces of water to fill all the water balloons. which multiplication equation can be used to find how many water balloons b lamar fills?
a) 54.6(1.3) = b
b) b = 1.3(54.6)
c) 1.3 = 54.6b
d) 1.3b = 54.6

Explanation:

Step1: Understand the problem

We know that each water balloon takes 1.3 fluid ounces, and the total water used is 54.6 fluid ounces. We need to find the number of balloons \( b \), so the relationship is \( \text{ounces per balloon} \times \text{number of balloons} = \text{total ounces} \).

Step2: Analyze each option

• Option A: \( 54.6(1.3)=b \) – This multiplies total ounces by ounces per balloon, which is incorrect.
• Option B: \( b = 1.3(54.6) \) – This multiplies ounces per balloon by total ounces, incorrect.
• Option C: \( 1.3 = 54.6b \) – This sets ounces per balloon equal to total ounces times number of balloons, incorrect.
• Option D: \( 1.3b = 54.6 \) – This is \( \text{ounces per balloon} \times \text{number of balloons} = \text{total ounces} \), which matches the relationship.

Answer:

D) \( 1.3b = 54.6 \)