Math question?!?
The 14 digits of a credit card number are written in the bowes below. If the sum of any three consecutive digits is 20, find the value of A.
theres a pic below the problem that has numbers and boxes, so when there is a *, that means a blank box.
A*7********7*4
tell me the answer and explain step by step(clearly plz) how u got that answer
Favorite Answer
now
you have the numbers listed as A*7********7*4=now lets change that up and give some of these * a symbol.
such that it becomes AX7q******G7P4
now it’s consecutive number (1,2,3 etc ) whose sum give a value of 20 so we can form the following equations
A+X+7=20 (1)
7+p+4=20 (2)
x+7+q=20 (3)
g+7+p=20 (4)
——————————————–
from equation (4) we get
———————————————
g+7+p=20 (4)
7=20-(g+p)
———————————————————
substituting 7=20-(g+p) into (2) we get
20-(g+p)+p+4=20
-g = – 4
g=4
———————————————————-
substituting this value (g=4) into equation 4
4+7+p=20
p=9
———————————————————–
now I don’t know if I should make this assumption but it seems that the numbers loop so
I’m expecting the value of A to be 9.
as A*7********7*4
=AX7q******G7P4
=AX7q*******4794
SO FROM LOOKING AT THIS THE VALUE OF A IS 9
So then the star must be 4, and that makes A = 9.
- Academic Writing
- Accounting
- Anthropology
- Article
- Blog
- Business
- Career
- Case Study
- Critical Thinking
- Culture
- Dissertation
- Education
- Education Questions
- Essay Tips
- Essay Writing
- Finance
- Free Essay Samples
- Free Essay Templates
- Free Essay Topics
- Health
- History
- Human Resources
- Law
- Literature
- Management
- Marketing
- Nursing
- other
- Politics
- Problem Solving
- Psychology
- Report
- Research Paper
- Review Writing
- Social Issues
- Speech Writing
- Term Paper
- Thesis Writing
- Writing Styles