Collette washed 20 items in 8 minutes, at this rate how long would it take her to wash 26 items?

Question

6th grade math word problem

Answer 1

Set up a proportion:

8 is to 20 as x is to 26

 

8/20 = x/26

2/5 = x/26

cross multiply

5x = 2(26)

5x = 52

x = 52/5 = 10 2/5 minutes

 

(2/5 minutes)(60 sec/min) = 24 seconds

 

x = 10 minutes 24 seconds