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laiz [17]
4 years ago
9

A store decreases the price of an item from 120$ to 96$ what is the percent decrease

Mathematics
2 answers:
a_sh-v [17]4 years ago
8 0
Answer should be a 20% decrease
Paul [167]4 years ago
6 0
The percent of decrease formula is percent of decrease divided by original value. So the equation would be 24/120, which is 20 percent decrease
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Ecuación 2:<br> 10x + 20y = 8000<br> ayudaaa
Elenna [48]

Answer:

y = 300

x = 200

Step-by-step explanation:

Esta pregunta parece incompleta, parece que acá tenemos un sistema de ecuaciones:

x + y = 500

10*x + 20*y = 8000

Estas ecuaciones tienen que resolverse en conjunto, y de acá sacaremos un par de puntos (x, y) que son solución para ambas ecuaciones.

El primer paso para resolver esto es aislar una variable en una de las ecuaciones, en este caso podemos aislar x en la primera ecuación y así obtener:

x = 500 - y.

Ahora podemos reemplazar eso en la segunda ecuación y obtener:

10*(500 - y) + 20*y = 8000.

Ahora resolvemos esto para y.

5000 - 10*y + 20*y = 8000

10*y = 8000 - 5000 = 3000

y = 3000/10 = 300.

Y sabíamos que:

x = 500 - y = 500 - 300 = 200

Entonces la solución es:

y = 300

x = 200

4 0
3 years ago
F(x)=2x ​2 ​​ +5√ ​(x+2) ​ ​​f(2)=
irga5000 [103]

f(x) 2x² + 5√(x+2)


f(2) = 2(2)² + 5√(2+2)

     = 2(4) + 5√4

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4 0
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Simplify 34x+13xy+12y​
ANEK [815]

Answer:

Step-by-step explanation:

47x+12y

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Which function has an inverse that is a function?
Fudgin [204]

Answer:

Its going to be C on 2020 edg

Step-by-step explanation:

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How many points did the player with the fewer points score?
zmey [24]
B. 54
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