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30 votes
30 votes
(2.4 × 10^3) × (3 × 10^n) = 7.2 × 10^9

User Timotimo
by
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1 Answer

7 votes
7 votes

Answer:

n = 6

Explanation:

(2.4 × 10^3) × (3 × 10^n) = 7.2 × 10^9

First lets solve the parentheses:

(2.4 × 1000) × ( 3 × 10^n) = (7.2 × 1000000000)

2.4 × 1000 = 2400 so...

2400 × (3 × 10^n ) = 7200000000

Next lets divide:

7200000000/2400 = 3000000

So now we have...

(3 × 10^n ) = 3000000

Even though we just divided we have to divide again so...

3000000/3 = 1000000

then to get the answer of n we have to figure out how many times to the power of 10 do we get 1000000.

one easy but time consuming way is

dividing it by ten till you get to one and you would get the same answer. You choose to do that way then that works for your.

There are also other way to figure that out but your teacher teaches you an easier way to figure it out.

User Xevelion
by
2.6k points
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