Janet makes $20 per hour at work. She works 52 hours per week. Anything over 40 hours per week is considered overtime and is paid at 1.5 times the normal rate. She wants to purchase a $4640 car. How many weeks does she need to work to purchase the car?
Each week she makes $20 * 40 = $
<gadget id="calculator">20*40</gadget>
<output>800</output>
800 from her normal hours.
For overtime she makes $20 * 1.5 = $
<gadget id="calculator">20*1.5</gadget>
<output>30</output>
30 per hour.
Each week she works 52 - 40 = 
<gadget id="calculator">52-40</gadget>
<output>12</output>
12 overtime hours per week.
She makes a total of 12 * $30 = $
<gadget id="calculator">12*30</gadget>
<output>360</output>
360 from overtime every week.
This means she makes a total of $800 + $360 = $
<gadget id="calculator">800+360</gadget>
<output>1_160</output>
1160 per week.
To reach $4640 she would need to work $4640 / $1160 = 
<gadget id="calculator">4640/1160</gadget>
<output>4</output>
4 weeks.

<result>4</result>