A charity is delivering chicken and rice dinners to a shelter for the hungry. They have a hundred plates to deliver. The rice cost ten cents a plate and the chicken cost forty cents a plate. How many dollars did the charity spend on the food for the dinners?
Each chicken and rice plate cost 10 + 40 = 
<gadget id="calculator">10+40</gadget>
<output>50</output>
50 cents.
The charity spent 50 * 100 = 
<gadget id="calculator">50*100</gadget>
<output>5_000</output>
5000 cents for the dinners.
There are 100 cents in a dollar, so the charity spent 5000 / 100 = $
<gadget id="calculator">5000/100</gadget>
<output>50</output>
50 for the dinners.

<result>50</result>