<PRE><B>Question 1210596</B>
&lt;br&gt;
Full charge to start:&lt;br&gt;
{{{x}}}&lt;br&gt;
Used in takeoff and ascent phase: 30% plus 8&lt;br&gt;
{{{.3x+8}}}&lt;br&gt;
Remaining:&lt;br&gt;
{{{x-(.3x+8)=.7x-8}}}&lt;br&gt;
Used during data collection phase: 60% of remaining plus 12&lt;br&gt;
{{{.6(.7x-8)+12=.42x+7.2}}}&lt;br&gt;
Remaining:&lt;br&gt;
{{{(.7x-8)-(.42x+7.2)=.28x-15.2}}}&lt;br&gt;
The amount remaining was 136 less than the amount used during the data collection phase:&lt;br&gt;
{{{.28x-15.2=(.42x+7.2)-136=.42x-128.8}}}
{{{113.6=.14x}}}
{{{x=113.6/.14=5680/7}}}&lt;br&gt;
Amount used during takeoff and ascent:&lt;br&gt;
{{{.3x+8=1760/7}}}&lt;br&gt;
ANSWER: 1760/7 mAh, or 251 3/7&lt;br&gt;
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