Concept explainers
The number of students in the survey.
Answer to Problem 44PPS
Explanation of Solution
Given:
In a survey, 36% of the students said that they kept an electronic diary and there were 900 students who kept the electronic diary.
Concept Used:
Rules of Addition/ Subtraction:
- Two numbers with similar sign always get added and the resulting number will carry the similar sign.
- Two numbers with opposite signs always get subtracted and the resulting number will carry the sign of larger number.
- The product/quotient of two similar sign numbers is always positive.
- The product/quotient of two numbers with opposite signs is always negative.
Rules of Multiplication/ Division:
Calculation:
In order to find the number of students in the survey, observe that 36% of students had electronic diary and the number of students who had electronic diary was 900.
Let the total number of students be x . Then 36% of x would be equal to 900. So, it gives
Thus, the number of students in survey is
Chapter 7 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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