I'll give a practice problem to help explain it a bit better.
Here, let's try to solve 45% of of 60.
First, we convert the percentage into a decimal. To turn any percentage into a decimal you move the point two spaces to the left.
That means 45% as a decimal is .45.
Next, we multiply our number, 60, by the decimal .45.
60×.45=27.
That means 45% of 60 is 27.
To sum it all up, you have to get the percentage, move the decimal point two spaces to the left, and multiply it by the number you were trying to find the percentage of.
Have a wonderful day! :)
3(2)-18=-12
6-18 = -12
-12 = -12
Divide 1500 by 5 to get one fifth of the savings. Multiply that by 12 to get yearly savings. You end up with 3600.
Answer:
Step-by-step explanation:
La función es
Diferenciando con respecto a 
obtenemos
Igualar con cero
Doble derivada de la función
Entonces, la función es máxima cuando el número de unidades vendidas, 
,
