## Spring98 one year ago I need help asap. Will medal and fan! Thanks! The mass of a freight train is 9.98 • 10^6 kilograms. The mass of an aircraft carrier is 7.3 • 10^7 kilograms. Approximately how many more kilograms is the mass of an aircraft carrier than the mass of a freight train? Show your work and write your answer in scientific notation.

1. Spring98

@dan815

2. Spring98

no one seems to know these questions. Can you help?

3. Spring98

@Shalante

4. Spring98

5. Spring98

@luckycoins888 @west_coast @Elsa213 @razor99 @taylor1048 @Meehan98 @dan815 plz help me I need help.

6. Spring98

this is scientific notation

7. Spring98

@countryboy01

8. anonymous

Yes?

9. anonymous

6.62 times 10^5

10. anonymous

ok im getting 25 i might be wrong but im not sure

11. Spring98

this is supposed to be in scientific notation

12. Spring98

@dan815

13. anonymous

im not sure then i got it messed up

14. anonymous

im sorry

15. jdoe0001

$$\large \begin{array}{lrlll} 7.3\times 10^7\implies &7\underline{3000000}\\ 9.98\times 10^6\implies &-9\underline{980000} \\\hline\\ &? \end{array}$$

16. Spring98

@jdoe0001 is "Approximately, 63.02 *10^6 more kilograms is the mass of an aircraft carrier than the mass of a freight train" the answer?

17. jdoe0001

yes that's correct BUT scientific notation, uses only one number to the left of the dot you have two numbers $$\bf \underline{63}.02\times 10^6$$

18. Spring98

so is it 6.3?

19. jdoe0001

$$\bf 6.302\times 10^7$$ yeap

20. jdoe0001

same thing, we simply move the dot over to the left one more slot so we end up with only one digit on the left side :)

21. Spring98

thanks

22. jdoe0001

yw