SOLUTION: What precent of 120 is 15?

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: What precent of 120 is 15?      Log On


   

Question 72829This question is from textbook Algebra:Structure and Method
: What precent of 120 is 15? This question is from textbook Algebra:Structure and Method

Found 2 solutions by jim_thompson5910, terbear1963:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Let the words "what percent" be our unknown x. Remember "of" means multiply and "is" represents =. So this expression looks like
x%2A120=15
x=15%2F120
x=1%2F8
x=0.125Multiply this answer by 100 to get the percentage
0.125%2A100=12.5 So 12.5% of 120 is 15

Answer by terbear1963(43) About Me  (Show Source):
You can put this solution on YOUR website!
YOU HAVE TO REMEMBER THAT MOST OF YOUR PERCENTAGE WORD PROBLEMS CAN BE SOLVED AS RATIO PROBLEMS. IN THIS PROBLEM YOU NEED TO SET UP YOUR RATIO AS FOLLOWS: >>>>>>> X/100 = 15/120 >>>>>>> REMEMBER THAT CROSS PRODUCTS ARE EQUAL, SO >>>>>>>>> 120X = 1500 >>>>> X = 12.5 I HOPE THIS HELPS YOU OUT?! IF YOU HAVE ANY OTHER MATH ?'s, YOU CAN E MAIL ME AT cats7051@yahoo.com YOUR MATH FRIEND , TERRY :)