Question

carrie bought a bag of classy canine dog food for her dog squiggle. the bag had enough food to last 15 days. squiggle gets 3 cups of dog food each day. let d represent the amount of dog food in the bag at the start. which equation models the problem?\\(\frac{d}{15}=3\\)\\(3d = 15\\)solve this equation to find the amount of dog food in the bag at the start.\\(\square\\) cups

Explanation:

Step1: Identify the correct equation

The dog eats 3 cups per day, and the food lasts 15 days. So total food \( d \) divided by number of days (15) equals daily amount (3). So the equation is \( \frac{d}{15}=3 \).

Step2: Solve for \( d \)

Multiply both sides of \( \frac{d}{15}=3 \) by 15:
\( d = 3\times15 \)
\( d = 45 \)

Answer:

The correct equation is \( \frac{d}{15}=3 \), and the amount of dog food at the start is 45 cups.