I was wondering how to go about solving this equation. 7: X :: 35:5. The directions say to solve for X.?

Question

I know how to solve algebraic equations, but I'm not sure what the colons mean in this process. Any help is great!

Answer 1

I think its a ratio problem. Its saying 7 is to X as 35 is to 5. You could set it up like 7/X = 35/5 and solve. The answer is 1.

Answer 2

such a weird way in writing equation

7/x = 35/5

might better

and as the others had answer, the X is 1 :D

Answer 3

7 to x = 35 to 5

7 goes into 35 , 5 times so another way of saying this is

35 to 5x = 35 to 5

Your two first terms (35) are tha same so yo can take them out of the equation to get

5x=5

so x=1  

Answer 4

You have to start with the inner two variables (x & 35) and then the outer two variables (7 & 5)

35x = 7 * 5

35x = 35

divide by 35 on each side

x = 1