How do you evaluate #7.3\times 10^ { 5} + 2,400,000#?

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Answer 1 · 2018-05-10T21:27:57

Turn them both into standard notation and then add.

# 7.3 xx 10^5 = 730,000 #

Adding 2, 400,000
...................+ 730,000 gives

3,130,000

Answer 2 · 2018-05-10T21:45:41

#31.3xx10^5#

Note that #2,400,000# is the same as #24.0xx10^5#

So what we have in effect is:

#color(white)(2)7.3xx10^5#
#ul(24.0xx10^5 larr" Add")#
#31.3xx10^5#

You can add these directly because they both have the same unit of measurement of #10^5#