3 years ago

Help please I don’t understand any of this

Mathematics

2 answers:

sveta [45]3 years ago

6 0

The two angles form a straight line which is equal to 180 degrees. This makes the angles supplemtary.

To find x, add the two angles together to equal 180:

7x + x+20 = 180

Combine like terms:

8x + 20 = 180

Subtract 20 from both sides:

8x = 160

Divide both sides by 8:

X = 20

myrzilka [38]3 years ago

4 0

Answer:

x=20

Step-by-step explanation:

2(7x)+2(x+20)=360

You might be interested in

7 (f- 1 )=45 solve equation

Karo-lina-s [1.5K]

7(f-1)=45

7xf=7f

7x-1=-7

add 7 to 45=52

divide 52 by 7

f=7.43 (rounded)

7 0

3 years ago

Read 2 more answers

PLEASE HELP... Students are making necklaces of six beads for their mothers. There are

nasty-shy [4]

Answer:

Step-by-step explanation:

#1 Number of ways picking 2 from 6 = 6C2 = 15

#2 Arranging them in a circle (consider 1 pair AB)

can be done

1,5 (ABBBBB) or (5,1)

2,4 ( AABBBB) or (4,2)

3,3

1,1 (ABABAB)

all up = 7 ways

#3 = product of #1 and #2 = 15x7 = 105

3 0

2 years ago

A 30 -60 -90 triangle has a hypothesos with a leanght of 10

algol13

$5 \sqrt{3}$
This is the longer leg of this triangle

3 0

4 years ago

Factorizing as the Difference of Two Squares<br>1. 144x2 - 49

igor_vitrenko [27]

Answer:

Factorizing as the Difference of Two Squares

1. 144x2 - 49

Step-by-step explanation:

Where is the picture?

7 0

3 years ago

Find the area of the rectangle<br> Зху<br> 8x2

Harrizon [31]

Answer:

Step-by-step explanation:

multiply both expressions

(3xy)(8x^2)

24x³y

hope this helps <3

6 0

3 years ago