Ineed an example of this to me out…
(3.76 x 10^5)+(7.44 x 10^5)

1.12 x 10^6 or 1,120,000

Step-by-step explanation:

You work out the first part which would be (3.76 x 10^5) or 376,000.

Then you work out the second part which would be (7.44 x 10^5) or 744,000.

Then you add them together and move the decimal over to where the number is less than ten but greater than 0 so it would be like this:

1.120000

But just cut all the zeros so it would be like this:

1.12

And how ever many times you move the decimal over is the number you put beside the ten by the way. it should look a little like this by the time you are done:

1.12 x 10^6

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step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.