4. For numbers 4 to 6, refer to the given problem. Alice's house uses a high-end security system. Her front door needs a 5-digit code. Alice's mother visited the house but no one was home and she cannot remember the complete digits of the code. All she can remember are the first three digits which are 789. She remembered however, that the units digits is twice the tens digit increased by 3. The number is 3 more than twice the sum of the digits. What is the representation of the units digit? O A. X о в. 2х О С. 2х + 3 о D. 2х- 3 5. What equation should be used to solve the problem? O A. x+ 2x + 3 = 3 + 2(2x + 3) O B. X + 2x + 3 = 3 + 2(x + 2x + 3) O C. 10x + 2x - 3 = 3 + 2(2x - 3) O D. 10x + 2x + 3 = 3 + 2(x + 2x + 3) 6. What are the last 2 digits of the code? O A. 15 О в. 24 О С. 33 O D. 42
4. For numbers 4 to 6, refer to the given problem. Alice's house uses a high-end security system. Her front door needs a 5-digit code. Alice's mother visited the house but no one was home and she cannot remember the complete digits of the code. All she can remember are the first three digits which are 789. She remembered however, that the units digits is twice the tens digit increased by 3. The number is 3 more than twice the sum of the digits. What is the representation of the units digit? O A. X о в. 2х О С. 2х + 3 о D. 2х- 3 5. What equation should be used to solve the problem? O A. x+ 2x + 3 = 3 + 2(2x + 3) O B. X + 2x + 3 = 3 + 2(x + 2x + 3) O C. 10x + 2x - 3 = 3 + 2(2x - 3) O D. 10x + 2x + 3 = 3 + 2(x + 2x + 3) 6. What are the last 2 digits of the code? O A. 15 О в. 24 О С. 33 O D. 42
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
ANSWER #4 #5 #6. ANSWERS ONLY
Transcribed Image Text:4.
For numbers 4 to 6, refer to the given problem.
Alice's house uses a high-end security system. Her front door needs a 5-digit code. Alice's mother visited the house but no one was home
and she cannot remember the complete digits of the code. All she can remember are the first three digits which are 789. She remembered
however, that the units digits is twice the tens digit increased by 3. The number is 3 more than twice the sum of the digits.
What is the representation of the units digit?
О А.Х
о в. 2х
О С. 2х + 3
о D. 2х - 3
5. What equation should be used to solve the problem?
O A. x + 2x + 3 = 3 + 2(2x+ 3)
O B. X + 2x + 3 = 3 + 2(x + 2x + 3)
O C. 10x + 2x - 3 = 3 + 2(2x - 3)
O D. 10x + 2x + 3 = 3 + 2(x + 2x + 3)
6. What are the last 2 digits of the code?
O A. 15
о в. 24
О С. 33
O D. 42
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