The sum of the populations of the two cities can be found by adding the two populations together.
3.45×10⁶ + 1.3×10⁵ = (3.45+1.3)×10⁶ = 4.75×10⁶
So, the sum of the populations of the two cities is 4.75×10⁶.
The population of a city is given as 3.45×10⁶. A nearby city has a population of 1.3×10⁵. What is the sum of the populations of the two cities in scientific notation?
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