The population of California is approximately 38,040,000. The population of Texas is about 2.606 × 107. Whats the total popluation

Question

Please help me its important to pass my class

Answer 1

I think that you mean that the population of Texas is 2.606 x 10⁷  

 

When you're typing, you could also use the caret(^) symbol like this: 2.606 x 10^7.

 

In order to solve the problem, you can express the other number (population of California) so that it also has the 10⁷ part.

 

Even though it doesn't show it, that number really has a decimal point at the end:

 

38,040,000.

 

If you move that decimal point 7 places to the left,  you get 3.804  (you can drop the 0's on the right since now they're after the decimal point).  To keep the number the same, you put x 10⁷ after that:   3.804 x 10⁷

 

The exponent is a positive 7 because you moved the decimal point to the left.

 

So you're adding:   2.606  x 10⁷  

                              + 3.804  x 10⁷

                          --------------------------

 

The answer is:       6.41     x 10⁷

 

Answer 2

The population of Texas is not 2.606*107. Stupid Americans...