SOLUTION: this question says: start with the number 1 and follow these instructions. .double the number .add 5 .double the result .subtract 10 .divide the answer by 4. then it says repeat

Algebra ->  Linear-equations -> SOLUTION: this question says: start with the number 1 and follow these instructions. .double the number .add 5 .double the result .subtract 10 .divide the answer by 4. then it says repeat       Log On


   

Question 6264: this question says: start with the number 1 and follow these instructions.
.double the number .add 5 .double the result .subtract 10 .divide the answer by 4. then it says repeat the same set of instructions with the numbers below and use the answers to complete the table. it says: start n = 1 3 5 7 and then end with m. it then says use algebra notation to write the instructions as an expression involving the letter n. please help me i really dont get the questions =( thanx heaps
Answer by AnlytcPhil(1806) About Me  (Show Source):
You can put this solution on YOUR website!
We start with the number n :



So to begin with, we have " n "

 

>>...double the number...<<



Now so far we have " 2n "



>>...add 5...<<



Now so far we have " 2n + 5 "





>>...double the result...<<



Now so far we have " 2(2n+5) "  or " 4n + 10 "



>>...subtract 10...<<



Now so far we have " 4n+10 - 10 ", or " 4n " 



>>...divide the answer by 4<<



Now so far we 4n/4 or " n ", back where we started!



So no matter what you start with, you end up with what you started with,



So if you start with 1, 3, 5 or 7, or any other number, you end up with 1, 3,

5, or 7, or whatever number you started with.



Edwin