SOLUTION: when you get home this afternoon, you decide to rake the yard. if it takes you 30 seconds to rake 20 square feet, how many minutes will it take you to rake an area 50 feet by 80 fe

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: when you get home this afternoon, you decide to rake the yard. if it takes you 30 seconds to rake 20 square feet, how many minutes will it take you to rake an area 50 feet by 80 fe      Log On


   

Question 938857: when you get home this afternoon, you decide to rake the yard. if it takes you 30 seconds to rake 20 square feet, how many minutes will it take you to rake an area 50 feet by 80 feet.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
.5%2F20ft%5E2+=+x%2F400ft%5E2
x = 200/20 = 10min