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Serjik [45]
4 years ago
12

How do I do this I'm am really confused?

Mathematics
1 answer:
MrMuchimi4 years ago
6 0
Since (4y-42) and 2y are opposite angles, they equal to each other which looks like this:

4y-42 = 2y

From there you want to put the y onto one side:

4y-2y-42=0  ----->   2y-42=0


You want to balance the equation out and move the -42 onto the other side so you add it to both sides to get:

2y=42

Then divide both sides by 2 to get:

y= 21

From there you can plug 21 back into the original equation to find each angle.

4(21)-42 = 2(21)    --->   84-42 = 42  ---> 42 = 42

So y = 21 and each angle is 42 degrees
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El precio <em>resultante</em> con descuento de 12 % es igual a 342.32 pesos.

<h3>¿Cómo hallar el precio resultante con descuento?</h3>

En este problema tenemos que determinar el precio <em>resultante</em>, el cual es igual al precio <em>inicial</em> menos el descuento. A continuación, se presenta la siguiente expresión:

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El precio <em>resultante</em> con descuento de 12 % es igual a 342.32 pesos.

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