Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![**Educational Content: Solving Linear Equations**
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**Problem Statement:**
Terry buys beads by the bag to make jewelry. There are 25 beads in each bag. Which equation can he use to find the number of beads in any number of bags if:
- \( n \) equals any number of bags, and
- \( t \) equals the total number of beads?
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**Options Provided:**
1. \( 25t = n \)
2. \( 25 + n = t \)
3. \( 25n = t \)
4. \( 25 + t = n \)
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**Explanation:**
To find the correct equation that relates the number of bags of beads and the total number of beads, consider the following:
- Each bag has 25 beads.
- If you have \( n \) bags, then the total number of beads would be \( 25 \) beads multiplied by the number of bags \( n \).
Hence, the correct equation that represents this relationship is \( 25n = t \).
This equation indicates that multiplying the number of bags \( n \) by 25 (the number of beads in each bag) gives the total number of beads \( t \).
**Selecting the Correct Answer:**
From the options given, the third option, \( 25n = t \), is the correct equation.
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**Summary:**
To determine the total number of beads in any given number of bags, simply use the equation \( 25n = t \), where \( n \) is the number of bags and \( t \) is the total number of beads.
**Interactive Element:**
Students can practice more problems of a similar type or use interactive tools to enter different values for \( n \) to dynamically see the resulting total number of beads \( t \).
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