## tryder 2 years ago 1.5*10^11m = km

1. alexwee123

hint* there are 1000 meters in a kilometer

2. RyanL.

1.5*10^8 km 150,000,000

3. tryder

@ryanL. how did you got 1.5*10^8 km. can you show how please.

4. RyanL.

$m*10^3 =km$ so we use this conversion $\frac{km}{m*10^3}$ $1.5*10^{11}m * \frac{km}{m*10^3}= \frac{1.5*10^{11} km}{10^3}= 1.5*10^8km$

5. tryder

@RyanL. can you help me on this problem to check if I got it right. 6.23*10^-7m= nm

6. tryder

I got 6.24*10^4nm and it seems wrong.

7. RyanL.

6.23*10^2 nm look at the conversion

8. tryder

@RyanL. can you show me

9. RyanL.

1m= 1*10^9 nm

10. RyanL.

you will need to multiply what you have by 10^9 in order to convert it to nano meters.

11. RyanL.

That's why the -7 turns into 2 because -7 + 9 = 2

12. tryder

thanks

13. tryder

for everything