Concept explainers
To express: the equations with three-digit number.
Answer to Problem 6OE
The value of 3-digit number is
Explanation of Solution
Given information:
A three-digit number has hundreds digit h , tens digit t ,and units digit u .
Formula used:
Digit problems are based on our decimal system of numeration.
Step1. The problem asks for the original number.
Step2. Let h = the hundreds digit of the original number.
Let t = the tens digit of the original number.
Let u = the units digit of the original number.
Step3. Use the facts of the problem to write two equations.
Step4. Solve the equations.
Calculation:
Consider ,
Let h = the hundreds digit of the original number.
Let t = the tens digit of the original number.
Let u = the ones digit of the original number.
Hundreds | Tens | Units | Value | |
Original number |
Therefore, Sum of the digits of the original number:-
Hence, the value of 3-digit is
Chapter 9 Solutions
Algebra: Structure And Method, Book 1
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