A city has two water towers. One tower holds 7.38 x 10^5 gallons of water. The other holds 9.78 x 10^5 gallons of water. What is the combined scientific notation

Answer 1

The combined amount of water held in both water towers is:

(7.38 x 10^5) + (9.78 x 10^5) = 17.16 x 10^5 gallons

Therefore, the combined amount of water held in both water towers, in scientific notation, is 1.716 x 10^6 gallons.