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Mumz [18]
4 years ago
9

The expression 3x − 4(2x − 5) is equivalent to the expression 20 − 5x.

Mathematics
2 answers:
DanielleElmas [232]4 years ago
3 0
3x - 4(2x - 5) = 3x - 8x + 20 = -5x + 20...or 20 - 5x....true
ss7ja [257]4 years ago
3 0
3x - 4(2x - 5)

3x - 4*2x  - 4*-5 =  3x - 8x  + 20

= 20 + 3x - 8x

= 20 - 5x.

Since our final answer (20 - 5x) is the same as (20 - 5x) in the question, so it is equivalent.

True
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If you have a right trapezoid with two right angles, how do you find the other two missing angles?
uranmaximum [27]
You can't unless you have other information.

Hope this helps :)
6 0
3 years ago
3x/2y=11 x+y/2=7 igualacion<br> Alguien me puede ayudar
bearhunter [10]

La solución del sistema de ecuaciones es igual a (x, y) = (308/47, 42/47).

<h3>¿Cómo resolver un sistema de ecuaciones linear por igualación?</h3>

Los sistemas de ecuaciones basadas en entidades algebraicas se resuelven mediante procedimientos algebraicos. Grosso modo, el método de resolución por igualación consiste en despejar una variable en dos ecuaciones del sistema para eliminarla y reducir el número de ecuaciones <em>lineales</em> y el número de variables.

A continuación, presentamos una aplicación del método de eliminación:

\frac{3\cdot x}{2\cdot y} = 11

x = \frac{22\cdot y}{3}

x + \frac{y}{2} = 7

x = 7 - \frac{y}{2}

\frac{22\cdot y}{3} = 7 - \frac{y}{2}

\frac{47\cdot y}{6} = 7

y = 42/47

x = 7 - \frac{y}{2}

x = 308/47

La solución del sistema de ecuaciones es igual a (x, y) = (308/47, 42/47).

Para aprender más sobre los sistemas de ecuaciones: brainly.com/question/15811265

#SPJ1

3 0
2 years ago
Find the length of Jl.<br> JI=2x - 6<br> KJ=2x - 15 <br> KI=15
postnew [5]

Answer:

x=12

Step-by-step explanation:

2x-15 + 2x-6 = 15

4x = 36

x = 9

2 x 9 - 6 = 12

5 0
3 years ago
I will give brainliey
kotegsom [21]

Answer:

3/10

Step-by-step explanation:

6 blues

20 altogether

6/20= 3/10

6 0
3 years ago
What does the expression n+3 represent?
vaieri [72.5K]

Answer: Let's simplify step-by-step.

n+3

There are no like terms.

=n+3

Step-by-step explanation: hope this help

4 0
3 years ago
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