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Concept explainers
To calculate: Solve using the five-step plan. Write out each step. A choice of possible numbers for one unknown is given.The U.S. Senator has 100 members, all Democrats than Republicans. Recently there were 12 more Democrats than Republicans. How many Senators from each political party were there at that time? Choices for the number of Republicans: 38, 42, 44
![Check Mark](/static/check-mark.png)
Answer to Problem 7P
The number of republicans
Explanation of Solution
Given information:The U.S. Senator has 100 members, all Democrats than Republicans and there were 12 more Democrats than Republicans.
Calculation:
Step 1: Here we have two unknowns.
Step 2: Let
Step 3: As given, R+D = 100.
Step 4: Choices for
R + D = 100 | True / False | |
42 | 42 | False |
38 | 38 | True |
44 | 44 | False |
From above table we can say that number of republicans
Step 5: Now we verify the answer
which is correct
Chapter 1 Solutions
Algebra: Structure And Method, Book 1
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