Problema Solution
In a recent year, the number of $1 bills in circulation in the U.S. was about 7 billion.
If the number of $10 bills was 20% of the number of $1 bills, about how many $10 bills were in circulation?
Answer provided by our tutors
20% of 7 billion (the number of $1 bills) = the number of $10 bills in circulation. We can write:
.2*(7billion)=1.4 billion (this is the number of $10 bills in circulation)