Concept explainers
How much did you spend for lunch?
Answer to Problem 28STP
You spend for lunch is
Option A is correct
Explanation of Solution
Given:
You and your friend spent a total of $15 for lunch. Your friend’s lunch cost $3 more than yours did
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.
Rules of Multiplication/ Division:
- The product/quotient of two similar sign numbers is always positive.
- The product/quotient of two numbers with opposite signs is always negative.
In order to find an equation
Let x be the amount you spent for lunch and
The equation as shown below,
Thus, the equation is
In order to solve the equation
Thus, you spend for lunch is
Option A is correct
Chapter 8 Solutions
Glencoe Math Accelerated, Student Edition
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