Concept explainers
To calculate:the unknown in the given charts.
Answer to Problem 1P
12
Explanation of Solution
Given:
Fancy | |||
Plain |
Total no. of students = 30
Plain pennants cost = 4
Fancy pennants cost = 8
Total bill of the pennants=168
Calculation:
Let the no. of students bought plain pennants be =
Let the no. of students bought fancy pennants be =
Total no. of student bought both pennants =
Cost of plain pennants bought by
Cost of fancy pennants bought by
Total bill of the pennants =
now multiply the eq.1 with 4
Now subtracting eq.3 from eq.2
Now substitute the value of
Fancy | |||
Plain |
So, 12 student bought fancy pennants
Chapter 3 Solutions
Algebra: Structure And Method, Book 1
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