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tiny-mole [99]
3 years ago
7

Help QUICK PLEASE!!! GIVING BRAINLIEST AND 30 POINTS!!!! Which property can be used to expand the expression -2(3/4x+7)?

Mathematics
1 answer:
Mashutka [201]3 years ago
5 0

Answer:

distributive property

Step-by-step explanation:

your expression will look like this:

-1.5x+(-14)

or -2*3/4x+-2*7

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Sladkaya [172]

Answer:

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Step-by-step explanation:

It's arithmetic  b/c  you're just adding  1

arithmetic

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6 0
3 years ago
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GarryVolchara [31]
2x + 3y = 1470
Minus 2x from both sides gives
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8 0
4 years ago
The point (12,5) is on the line. Which is an equation for this line? Hint: y = kx
Tpy6a [65]

Answer:

Step-by-step explanation:

1 x 12,5

8 0
3 years ago
La suma de las edades de tres personas es 127años. La mayor tiene 30 años mas que la menor y la del intermedio 26 menos que la m
Over [174]

Answer:

La mayor tiene 61 años.

Step-by-step explanation:

Sea x,y,z la edad de la mayor, intermedio y la menor respectivamente.

Tenemos las siguientes ecuaciones:

x+y+z=127 (la suma de las edades es 127)

x = z+30 (la mayor tiene 30 años más que la menor)

La frase "y la del intermedio 26 menos que la menor" no tiene sentido, puesto que esto implicaría que la del intermedio es menor que la menor. Luego se asume que la frase ha de ser "y la del intermedio 26 menos que la mayor"

x-26 = y (la del intermedio tiene 26 menos que la mayor).

La segunda ecuación se traduce a x-30 =z. Si reemplazamos todo en la primera ecuación obtenemos

x+(x-26)+(x-30) = 127

Obtenemos la ecuación

3x-56 = 127

Sumando 56 a ambos lados y dividiendo por 3, obtenemos

x = \frac{127+56}{3} = 61

Es decir la mayor tiene 61 años.

6 0
3 years ago
Help me please The question is in this photo
Tju [1.3M]

Answer:

x² + x - 12 = 0

Step-by-step explanation:

Given the solutions are x = - 4 and x = 3, then the factors are

(x + 4) and (x - 3) and the equation is the product of the factors, that is

(x + 4)(x - 3) = 0 ← expand factors using FOIL

x² + x - 12 = 0 ← in standard form

3 0
3 years ago
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