Calculating the Cost of Glue Sticks

A pack of 4 glue sticks costs $7.76. If you need to determine the cost of 13 glue sticks, you can use the unit rate to make calculations. Let's break down the problem step by step:

Step 1: Find the cost of 1 glue stick

To find the cost of 1 glue stick, divide the total cost of 4 glue sticks by 4. This will give you the unit rate.

Step 2: Calculate the cost of 13 glue sticks

Now that you know the cost of 1 glue stick is $1.94, you can multiply this by the number of glue sticks you want to purchase, which is 13.

Therefore, the cost of 13 glue sticks would be $25.22.

Question:

Which equation would help determine the cost of 13 glue sticks?

Answer:

You can divide $7.76 by 4 to get the unit rate ($1.94) and then multiply that by 13 to calculate the total cost, which is $25.22.