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Nutka1998 [239]
3 years ago
11

Given: <A and <B are complementary.

Mathematics
1 answer:
andrezito [222]3 years ago
5 0

Answer:

48

Step-by-step explanation:

Complementary angles add to 90 degrees

A+B =90

5x+22  + 10x+8 = 90

Combine like terms

15x + 30 = 90

Subtract 90 from each side

15x +30-30 = 90-30

15x = 60

Divide by 15

15x/15 = 60/15

x =4

B = 10x+8

  =10*4+8

 = 40+8

 = 49

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Calcula y comprueba las ecuaciones: porfavor alguienn la nesesito pliss a) 2X = 6 b) 10 + Z = 20 c) P + 9 = 11 d) 3X + 8 = + 29
Alexeev081 [22]

Answer:

<u>a) x = 3</u>

<u>b) z = 10</u>

<u>c) p = 2</u>

<u>d) x = 7</u>

<u>e) u = 1</u>

Step-by-step explanation:

a) 2x = 6

Despejamos x dividiendo por 2 a amabos lados de la eacuacion.

(2/2)x = 6/2

<u>x = 3</u>

Si remplazamos x en la ecuación original:

2(3)=6

6 = 6

Queda demostrado.

b) 10 + z = 20

Despejamos z restando 10 en amabos lados de la eacuacion.

10-10+z = 20-10

<u>z = 10</u>

Si remplazamos z en la ecuación original:

10 + 10=20

20 = 20

Queda demostrado.

c) p + 9 = 11

Despejamos p restando 9 en amabos lados de la eacuacion.

p + 9 - 9 = 11-9

<u>p = 2</u>

Si remplazamos p en la ecuación original:

2 + 9 = 11

11 = 11

Queda demostrado.

d) 3x + 8 = 29

Despejamos x restando 8 en amabos lados de la eacuacion y luego divideindo por 3 en ambos lados de la ecuación.

3x+8-8 = 29-8

3x = 21

(3/3)x = 21/3

<u>x = 7</u>

Si remplazamos x en la ecuación original:

3(7) + 8 = 29

21 + 8 = 29

29 = 29

Queda demostrado

e) 2u + 8 = 10

Despejamos u restando 8 en amabos lados de la eacuacion y luego divideindo por 2 en ambos lados de la ecuación.

2u+8-8 = 10-8

2x = 2

(2/2)x = 2/2

<u>x = 1</u>

Si remplazamos x en la ecuación original:

2(1) + 8 = 10

2 + 8 = 10

10 = 10

Queda demostrado

Espero te haya sido de ayuda!

5 0
3 years ago
Two ships leave port at the same time. Ship A sails north at a speed of 10 mph while ship B sails east at a speed of 35 mph. Fin
blondinia [14]

Answer:

  d = (5√53)t

Step-by-step explanation:

After 1 hour, A is 10 miles north of the port, and B is 35 miles east of the port. Since these directions are at right angles, the Pythagorean theorem can be used to find the distance between the ships:

  d = √(10² +35²) = √(100 +1225) = √1325 = 5√53 . . . . miles

The distance between the ships is increasing this number of miles each hour, so the desired expression is ...

  d = (5√53)t ≈ 36.4t

3 0
4 years ago
EASY 5 POINTS!! Which expression gives the correct volume of the figure?
raketka [301]
I think it would be A
5 0
4 years ago
Read 2 more answers
Multiply negative 1 over 6 multiplied by negative 1 over 5
xz_007 [3.2K]

-1/6 x -1/5

Convert fractions

1 x 5

6 x 5

-5/30

1 x 6

5 x 6

-6/30

-5/30x-6/30

1/30(Used a calculator to multiply)

hope it helps!

4 0
3 years ago
How do you get .166 into a percent
Dafna1 [17]
To turn a decimal into a percentage, multiply the decimal by 100 and add a percent sign.
.166 x 100=16.6
And add a percent sign
16.6%
Hope this helps. 
4 0
4 years ago
Read 2 more answers
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