SOLUTION: The product of my number and twice my number is 72. What is my number? The answers given are: A)6 B)12 C)24 D)72 I must be setting this up wrong. I thought the Product of "m

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: The product of my number and twice my number is 72. What is my number? The answers given are: A)6 B)12 C)24 D)72 I must be setting this up wrong. I thought the Product of "m      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 607103: The product of my number and twice my number is 72. What is my number?
The answers given are: A)6 B)12 C)24 D)72
I must be setting this up wrong. I thought the Product of "my number" meant "my number" times itself. So I was setting up the problem as X^ + 2X = 72

Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
The product of my number and twice my number is 72. What is my number?
The answers given are: A)6 B)12 C)24 D)72
.
Let x = "my number"
then
x(2x) = 72
2x^2 = 72
x^2 = 36
x = 6