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andriy [413]
3 years ago
6

-13r + -4r + 14r -9 =-15

Mathematics
2 answers:
deff fn [24]3 years ago
8 0

Answer:

2

Step-by-step explanation:

-13 x 2 = -26

-4 x 2 = -8

14  x 2 = 28

-26 + -8 + 28 +-9 = -15

have a nice day and mark me brainliest! :)

Len [333]3 years ago
6 0

Answer:

-13r+ - 4r+ 14r - 9= -15

-17r+14r=-3r

-3r -9 =15

-3r=15+9

-3r=24

Divide both sides by -3r

r = -8

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6x+12y+5+2y+8 what’s the coefficient of y and what’s the constant
Rudik [331]

The coefficient of y is 14 and the constant is 13.

You can find this by combining like terms first.

6x + 12y + 5 + 2y + 8

6x + 14y + 5 + 8

6x + 14y + 13

Now the coefficient is the number next to y. The constant is the number on its own.

4 0
2 years ago
The circulation of a newsletter decreased from 6000 to 3710. Find the percent of decrease in circulation to the nearest percent.
max2010maxim [7]
It would be approximately a decrease of 38%
6 0
3 years ago
1) El largo de un rectángulo mide el triple que su ancho. Si el ancho mide 12 cm, el perímetro del rectángulo es: Selecciona la
Wittaler [7]

Answer:

1) c) 96 cm

2) c) 17,15 m

3) c) 294 m

4) d) 332 metros

Step-by-step explanation:

1)

La fórmula para el perímetro de un rectángulo = 2L + 2W

= 2 (largo + ancho)

L = longitud

W = ancho

Se nos dice en la pregunta que:

La longitud de un rectángulo es tres veces su ancho. Si el ancho es de 12 cm

Por lo tanto,

L = 3 W

L = 3 × 12

Largo = 36cm

Por lo tanto, el perímetro =

2 (largo + ancho) cm

= 2 (36 + 12) cm

= 2 (48) cm

= 96 cm

2)

La fórmula para el perímetro de un heptágono regular = 7a

Donde a = longitud de un lado

De la pregunta,

a = 2,45 m laterales

Por lo tanto, el perímetro de un Heptágono regular = 7 (2,45 m)

= 17,15 m

3)

La fórmula para el perímetro de un rectángulo = 2L + 2W

= 2 (largo + ancho)

L = longitud

W = ancho

Se nos dice en la pregunta que:

Si un campo de fútbol tiene 98 m de largo y su ancho es igual a la mitad de esta medida,

Por lo tanto,

L = 98 m

W = 1/2 de longitud

Ancho = 1/2 (98)

= 49

Por lo tanto, el perímetro =

2 (largo + ancho) m

= 2 (98 + 49) m

= 2 (147) m

= 294 m

4)

El parque es de forma rectangular.

Longitud = 45 m

Ancho = 38.000 mm

Convertir mm en m

1 milímetro = 0,001 metro

38.000 milímetro =

38.000 × 0,001 metros

= 38 metros (38 m)

La distancia alrededor del parque = perímetro del parque

Perímetro = 2 (L + W)

= 2 (45 + 38)

= 2 (83)

= 166 m

Distancia alrededor del parque una vez = 166 m

Pero nos dijeron que dio la vuelta al parque 2 veces, por lo tanto, la distancia que recorrió = 166 m × 2

= 332m

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3 years ago
The sum of 19 and a number X is equal to 22
madreJ [45]

x is 3. you would subtract 19 from 22 to get your answer

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62$ (earns of 1 week) multiplied with 52 weeks (how often he earns the 62$) is 3224
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