All categories

3 years ago

angle a and angle b are vertical angles. if m angle a = (7x + 28) and m angke b = (5x+22) then find the measure of angle a

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

4 0

vertical angles are equal

7x+28 = 5x+22

subtract 5x from each side

2x +28 =22

subtract28 from each side

2x =-6

x = -3

angle a

7x+28

7(-3) +28

-21+28

Angle A =7

You might be interested in

Decimals from least to greatest please help put in order. 2.2, 2.15, 2.2012, 2.501

Ivan

Answer: 2.15, 2.2, 2.2012, 2.501

4 0

3 years ago

Read 2 more answers

Round to the nearest tenth<br> 18 is what percentage of 79

GenaCL600 [577]

79 multiply .18 and you’ll get your answr

6 0

3 years ago

1) x+30 = 40

soldier1979 [14.2K]

1)x+30=40

x=40-30

Answer :x=10

2)30-20+2x=10

10+2x=10

2x=0

Answer: x=0

3)3x-10+13=-2x+28

3x+3=-2x+28

3x+2x+3=28

3x+2x=28-3

5x=28-3

5x=25

x=5

4)13x-23-45=-7x+12

13x-68=-7x+12

13x+7x-68=12

13x+7x=12+68

20x=12+68

20x=80

x=4

5)2(x+4)=10x+24

2x+8=10x+24

2x-10x+8=24

2x-10x=24-8

-8x=24-8

-8x=16

x=-2

6)3(x-5)=1-(2x-4)

3x-15=1-(2x-4)

3x-15=1-2x+4

3x-15=5-2x

3x+2x-15=5

3x+2x=5+15

5x=5+15

5x=20

x=4

7)5x-10=15

5x=15+10

5x=25

x=5

8)x+4=x+6

4=6

no solution

PLEASE MARK ME AS BRAINLIEST

4 0

3 years ago

(-1,2) and (3,4) what's the midpoint ? Show work please.

babymother [125]

The midpoint formula is:
$( \frac{x1 + x2}{2} , \frac{y1+y2}{2} )$
Insert your coordinates.
$(\frac{-1+3}{2}, \frac{2+4}{2}) = (\frac{2}{2}, \frac{6}{2} )$
Simplify.
$(1,3)$

7 0

3 years ago

amy buys 50 computers. she pays £160 for each computer. amy is going to sell some of the computers. she wants to get at least 35

Dmitry [639]

She need to sell 7 computers

3 0

3 years ago