Question

In 2005, 10^10 text messages were sent in the United States. In

2010, the number of annual text messages had risen to 10^12
The number of text messages for 2010 was how many times the
number of text messages for 2005?

Answer 1

9514 1404 393

Answer:

100

Explanation:

The ratio of the numbers for the two years is ...

(10^12)/(10^10) = 10^(12-10) = 10^2 = 100

In 2010 there were 100 times as many text messages as in 2005.