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Mathematics 14 Online
OpenStudy (cookie_2046):

On average, a commercial airplane burns about 4.0 × 103 mL of gasoline per second. There can be as many as 5 × 103 airplanes in the air in the United States at any given time. About how many milliliters of gasoline are burned per minute by commercial airplanes in flight in the United States? 1.2 × 10___ mL

OpenStudy (cookie_2046):

OpenStudy (cookie_2046):

@badmood

OpenStudy (badmood):

5 x 10^3

OpenStudy (alexalas):

okay this is using scientific notation do you know how it works?

OpenStudy (cookie_2046):

yes i know how scientific notation works

OpenStudy (alexalas):

alright so what is \[(4.0*10^{3})*(5*10^{3})*60\]

OpenStudy (cookie_2046):

idk? are u saying 4.000 x 5.00 x 60

OpenStudy (alexalas):

\[(4.0*10^{3})=4000, (5*10^{3})=5000\] so (4000)*(5000)*60=?

OpenStudy (cookie_2046):

so i have to multiply it?

OpenStudy (alexalas):

yes multiply (4000)*(5000)*60

OpenStudy (cookie_2046):

1.200000000?

OpenStudy (alexalas):

remove the decimal and it is correct

OpenStudy (cookie_2046):

ok thank u very much

OpenStudy (alexalas):

then put into scientific notation and the answer is ?

OpenStudy (cookie_2046):

12 x 10^9

OpenStudy (alexalas):

Yes correct

OpenStudy (alexalas):

so the answer to the problem is ?

OpenStudy (cookie_2046):

It's 9

OpenStudy (alexalas):

Correct any more problems?

OpenStudy (cookie_2046):

i think that's all

OpenStudy (cookie_2046):

thank u

OpenStudy (alexalas):

Alright then.

OpenStudy (cookie_2046):

if i need help i will tell you

OpenStudy (alexalas):

Correct any more problems?

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