Method 1:
In order to solve for this, we have to find out how many words Ryan can type in one minute first.
[tex]\frac{600 words}{12 minutes}[/tex] can be simplified into [tex]\frac{50 words}{1 minutes}[/tex]
(This is just normal simplifying, all you had to do was divide both sides by 12)
Now that we have our rate, [tex]\frac{50 words}{1 minutes}[/tex], we can figure out how many words Ryan can type in 20 minutes
[tex]\frac{50 words}{1 minutes}[/tex] * 20/20 = [tex]\frac{1000 words}{20 minutes}[/tex]
Ryan can type 1000 words in 20 minutes
Method 2:
You can use two fractions in order to solve this equation:
[tex]\frac{600 words}{12 minutes}[/tex] = [tex]\frac{x words}{20 minutes}[/tex]
The 'x' on the right is a variable because we don't know what the number is.
Simplify:
[tex]\frac{50 words}{1 minutes}[/tex] = [tex]\frac{x words}{20 minutes}[/tex]
Cross multiply:
1 * x = 50 * 20
x = 1000
Ryan can type 1000 words in 20 minutes
Good luck! If you have any questions, just ask :))
-T.B.
