Answer:
Time 4 minus 2
Step-by-step explanation:
Answer:
42 minutes
Explanation:
The total amount of anything expressed in percentage is 100%.
The reason for this is that per cent means per hundred.
So, 100% is
100
×
1
100
=
100
×
1
100
=
1
, which is a whole.
Moving to the question, a total of 25% + 5% = 30% of the time is used up by commercials and credits.
The time left for the program is 100% - 30% = 70%.
This is 70% of 60 minutes or
70
100
×
60
=
7
0
1
00
×
6
0
=
Step-by-step explanation:
<span>150+10c+150-10c=1.5(15-c)(15+c)300=1.5(225-c^2)300=337.5-1.5c^2200=225-c^2c^2=25c=5speed of current=5 mph<span>
</span></span>
We use the given data above to calculate the volume of gasoline that is being burned per minute by commercial airplanes.
Amount burned of 1 commercial airplane = <span>3.9 × 10³ ml of gasoline per second
Number of airplanes = </span><span>5.1 × 10³ airplanes
We calculate as follows:
</span> 3.9 × 10³ ml of gasoline per second / 1 airplane (5.1 × 10³ airplanes)(60 second / 1 min ) = <span>1.2 x 10^9 mL / min</span>
