Ryan bought 25 rolls of tissue. His roommate used up three-eighths of these 25 rolls. How many rolls of tissue were left?


Sagot :

Given:
             25 rolls of tissue = total rolls of tissue
             [tex] \frac{3}{8} [/tex] = the fraction of the 25 rolls of tissues used by Ryan's roomate

Asked:  How many rolls of tissue were left?

Solution:
               25 rolls of tissue = total number of tissues
               [tex] \frac{3}{8} [/tex] x 25 = 9. 375 = [tex]9 \frac{3}{8} [/tex] = number of rolls of tissue Ryan's roommate used.
               
How many rolls of tissue were left?

[tex]25 - 9 \frac{3}{8} [/tex] = [tex]15 \frac{5}{8} [/tex] = number of rolls of tissue left

Final Answer: 
                                 [tex]15 \frac{5}{8} [/tex]