Concept explainers
To find: The cost of two pens and two notebooks.
Answer to Problem 10P
T
The cost of two pen and two notebook is
Explanation of Solution
Given information:
The cost of three pens and two notebooks is
The cost of two pens and three notebooks is
Calculation:
Assume that the cost of a pen is
Form the linear equation using given information.
Rearrange equation (1).
Substitute the value of
Substitute the value of
Calculate the cost of two pens and and notebooks.
Therefore, the cost of two pen and two notebook is
Chapter 9 Solutions
Algebra: Structure And Method, Book 1
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