In a newspaper, it was reported that yearly robberies in Springfield were down 50% to 93 in 2013 from 2012. How many robberies were there in Springfield in 2012?
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.
![**Problem Statement**
In a newspaper, it was reported that yearly robberies in Springfield were down 50% to 93 in 2013 from 2012. How many robberies were there in Springfield in 2012?
**Solution**
To calculate the number of robberies in Springfield in 2012, recognize that the drop from 2012 to 2013 is 50%. If 93 robberies represent the remaining 50%, the number of robberies in 2012 can be calculated as follows:
Let \( x \) be the number of robberies in 2012.
Given:
\[ 0.5 \times x = 93 \]
Solve for \( x \):
\[ x = \frac{93}{0.5} \]
\[ x = 186 \]
Therefore, there were 186 robberies in Springfield in 2012.
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