text: # Each day people in a certain country purchase 3.2xx10^7 cans of beans. How many cans of beans are purchased in one​ year?
  
  Nov 20, 2017
  
  In one year the number of cans purchased would be: $1.2 \times {10}^{10} c a n s .$
  
  #### Explanation:
  
  Each day people buy $3.2 \times {10}^{7}$ cans of beans.
  
  That is $32 , 000 , 000$ cans of beans per day.
  
  So in one year the number of cans purchased would be:
  
  $\frac{3.2 \times {10}^{7} c a n s}{\cancel{\mathrm{da} y}} \times 365 \cancel{\mathrm{da} y s} = 1168 \times {10}^{7} c a n s$
  
  This will round off to: $\left(1.168 \times {10}^{3}\right) \times {10}^{7} c a n s = 1.2 \times {10}^{10} c a n s .$
  
  That is $12 , 000 , 000 , 000$ cans of beans per year.