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Ainat [17]
3 years ago
15

Please help me with this and I need the work shown out please

Mathematics
1 answer:
givi [52]3 years ago
5 0
Please note that you have to use the reason vert. opp. angles to find x, hope it helps:)

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Simplify 2(12-18\3+4)
Goshia [24]

{\bold{\red{\huge{\mathbb{QUESTION}}}}}

Simplify

2(12 -  \frac{18}{3}  + 4)

\huge\green{\boxed{\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}}}

ATQ->

2(12 - ( \frac{ \cancel{18}^{ \:  \:  \: 6} }{3} ) + 4 \\ 2(12 - 6 + 4) \\ 2(16 - 6) \\ 2(10) \\ 20 \:  \: is \: your \: ans

4 0
3 years ago
Read 2 more answers
Please help! I’ll also give brainliest! Thank you!
creativ13 [48]

Answer:

{2,5,6,,8,11,13,14} is the answer

4 0
3 years ago
6x+5y=120, 7x+11y=202 solve for x and y
Talja [164]
6x=120-5y -> x=20-5/6*y -> 7(20-5/6*y) + 11y =202 -> 140-35/6*y + 11y = 202 -> 140+31/6*y=202 -> 31/6*y = 62 -> y = 12.
7 0
4 years ago
Una nadadora entrenó todos los días durante 21días. El primer día nadó 15 minutos, y cada día nadaba 5 minutos más que el día an
nadya68 [22]

Responder:

1 hora 55 minutos; 22 horas 45 minutos

Explicación paso a paso:

Dado que:

Tiempo el primer día = 15 minutos

Minutos adicionales cada día siguiente = 5 minutos

Número total de días

Usando la fórmula del enésimo término de una progresión aritmética:

Tn = A + (n - 1) d

A = primer trimestre = 15

d = diferencia común = 5

n = enésimo término

Tiempo de nado el último día (n = 21)

T21 = 15 + (21 - 1) 5

T21 = 15 + 20 * 5

T21 = 15 + 100

T21 = 115 minutos

= 1 hora 55 minutos

SEGUNDO.)

Suma de minutos durante las 3 semanas

Suma de n términos:

Sn = n / 2 * (primer término + último término)

Primer término = 15

Último trimestre = a21 = 115 minutos

n = número de términos = 21

Por lo tanto,

Sn = 21/2 * (15 + 115)

Sn = 10,5 * (130)

Sn = 1365 minutos

= 22 horas 45 minutos

3 0
3 years ago
The midpoint of ab is m (-2,-1) if the coordinates of a are (-7,2) what are the coordinates of b
Vlad [161]

Answer:

The coordinates of b are: (x, y) = (3, -4)

Step-by-step explanation:

Given

Given that the midpoint of the ab is:

  • m(-2, -1)

The coordinates of a are:

  • (-7, 2)

To determine

The coordinates of b = ?

Let b (x, y) be the coordinates of b.

Given that the midpoint of the ab is m(-2, -1)

Thus,

(x - 7) / 2 = -2,      (y + 2) /2 = -1

now solving

(x - 7) / 2 = -2

(x - 7) = -2 × 2

x - 7 = -4

adding 7 in both sides

x  - 7 + 7 = -4 + 7

x = 3

and solving

(y + 2) /2 = -1

(y + 2) = -1 × 2

y + 2 = -2

subtracting 2 from both sides

y + 2 - 2 = -2 - 2

y = -4

Thus,

The coordinates of b are: (x, y) = (3, -4)

7 0
3 years ago
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