Concept explainers
a.
To find: Estimate the number of smart phones if there are 1450 students.
a.
Answer to Problem 8MCQ
The number of smart phones is approximately 847(when it is rounded to nearest whole number).
Explanation of Solution
Given information: The number of students at Jefferson school has Smart phone is represented by
Calculation:
Let’s plug in x as 1450 into the given equation and simplify.
Let’s simplify the right side of the equation.
Conclusion: The number of smart phones is approximately 847(when it is rounded to nearest whole number).
b.
To find: Mathematical practice did we used to solve this problem.
b.
Answer to Problem 8MCQ
The problem used substitution, multiplication property of equality and addition property of equality.
Explanation of Solution
Given information:
Firstly x is substituted 1450 then multiplied with the 0.482.Finally added this result to 148.
Chapter 4 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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