Twelve hungry teenagers can devour a very large pizza in 20 minutes. How many teenagers would it take to finish a very large pizza in 18 minutes? (Assume that all teenagers eat pizza at the same rate.)
+4 5x + 3 = 7x – 1. ...
5x + 2(x + 7) = 14x – 7. ...
12t – 10 = 14t + 2. ...
5(z + 1) = 3(z + 2) + 11 Solve for Z. ...
The price of a book went up from $20 to $25. ...
The price of a book decreased from $25 to $20. ...
After taking several practice tests, Brian improved the results of his GRE test by 30%.
May be this will help.
+23246 If it takes 12 teenagers to eat one pizza in 20 minutes, they spent 12 x 20 = 240 teenager-minutes chewing.
So, how many teenagers will it take to eat that pizza in 18 minutes?
Divide the number of teenager-minutes by minutes to get the number of teenagers.
240 teenager-minutes / 18 minutes = 13 1/3 teenagers.
