100 points if you show how you got the answer!
2 answers:
First, simplify each one.
9.98 x 10^6 = 9980000
7.3 x 10^7 = 73000000
Next, subtract the freight from the aircraft
73000000 - 9980000 = 63020000
Round the decimal point to the first significant digit, and place the amount of place values the decimal point moved to the left as a power sign, over 10.
63020000 = 6.302 x 10^7
6.302 x 10^7 is your answer
hope this helps
Solution:
Freight Train:
= 9.98 x 10^6
= 9.98 x (10 x 10 x 10 x 10 x 10 x 10)
= 9.98 x (1,000,000)
= 9,980,000 kilograms
Aircraft Carrier:
= 7.3 x 10^7
= 7.3 x (10 x 10 x 10 x 10 x 10 x 10 x 10)
= 7.3 x (10,000,000)
= 73,000,000 Kilograms
The aircraft carrier is 72,020,000 kilograms more than the freight train!
0.0000007202 = 7.202 x 10^-7
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