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:
x = 389 · (1 - 12/100)
x = 389 - 46.68
x = 342.32
El precio <em>resultante</em> con descuento de 12 % es igual a 342.32 pesos.
Para aprender más sobre descuentos: brainly.com/question/24130820
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(3c+s)(100-20)/100=100 multiply both sides by 100
(3c+s)80=10000 divide both sides by 80
3c+s=125 subtract 3c from both sides...
s=125-3c....now let's look at the second situation...
(4c+2s)(100-40)/100=120 multiply both sides by 100
60(4c+2s)=12000 divide both sides by 60
4c+2s=200 divide both sides 2
2c+s=100 subtract 2c from both sides
s=100-2c, and from earlier we saw that s=125-3c, since s=s:
100-2c=125-3c add 3c to both sides
100+c=125 subtract 100 from both sides
c=25, and since s=100-2c
s=50
So cds cost $25.00 and sweatshirts cost $50.00
Answer:
-1711005
Step-by-step explanation:
using BODMAS that implies you multiplication(M),before addition(A), then substraction(S) which comes last.
use the above rule to get the variable without letter only.
so ( 2*2)+(-3)=1
then 1-9=8, this part is for the left hand side which gives us 4x-8.
then the right hañd side 3-173-5133193 not including the variable with the letter x.now we have:1x-5133023.
so now
4x-8=1x-5133023
collect like terms
4x-1x=-5133023+8
3x=-5133015
divide both side by 3
x= -1711005
Answer: D
Step-by-step explanation: they Match because same length=congruent
Answer:
C) Maria bought a magazine for $8 and 2 notebooks. She spent a total of $15. What was the cost of each notebook?
Step-by-step explanation:
The equation has twice an unknown value added to 8 with the result being 15.
<em>Here are how the answer choices compare to the equation:</em>
A) only one magazine of unknown cost is involved, not two. There is not enough information to answer this question with any equation.
B) three unknowns are involved and the question asks for the difference of their sum and 15. There is not enough information to answer this question with any equation.
C) if x represents the cost of the notebook, the equation is appropropriate to finding its cost, as asked by the question. This is the best choice.
D) only one unknown. The question makes no sense, as she bought items worth more than the amount paid.
