Question

In the United States in 1980

approximately 60 million families had
TV's in their home. In 2015 there were
almost 100 million families that had TV's
in their home. Approximately how many
more TV's were there in 2015? Write
your answer in scientific notation,

Answer 1

There were approximately 40 million more TVs in 2015 compared to 1980.

Step-by-step explanation:

To find the number of TV's in 2015, we need to calculate the difference between the number of families with TV's in 2015 and 1980. The difference is approximately 100 million - 60 million = 40 million families. Since each family has one TV, the number of extra TV's in 2015 is also 40 million. This can be written in scientific notation as 4 x 10^7 TV's.