To find: The number of students participated last year.
Answer to Problem 19PTTS
The number of students participated last year is
Explanation of Solution
Given information: The number of students participating in a math competition increased by
Calculation:
The number of students participated this year is
The increased rate of one year is
Let, The number of students participated last year is
Since, The increase rate is
Where,
Now, The total number of students participated this year
Let’s find the value of
Hence, The number of students participated last year is
Chapter 7 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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