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noname [10]
3 years ago
8

I need help with number 2 :(

Mathematics
1 answer:
Shalnov [3]3 years ago
7 0

x + 12 + 19x + 8 = 180

x + 19x = 20x (combining like terms)

12 + 8 = 20 (combining like terms)

20x + 20 = 180

180 - 20 (subtracting 20 to both sides)

20x = 160

160 / 20 = 8 (dividing by 8 on both sides)

<em>x = 8</em>

CDA = x + 12

CDA = 8 + 12

<u>CDA = 20</u>

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A class makes a rectangular banner out of 20 smaller rectangles with the demensions shown. the demention is 3/5 by 1/3 ft
alina1380 [7]

<u>Area of Banner is  4 sq.ft.</u>

<u>Step-by-step explanation:</u>

Class made 20 smaller rectangles

dimension of each rectangle =  3/5 ft × 1/3 ft

Area f banner  = 20 * ( area of 1 rectangle)

⇒ 20 * ( 3/5 * 1/3 )

⇒  20 * 0.2

⇒  4 sq.ft

<u>Area of Banner is  4 sq.ft.</u>

<u></u>

7 0
4 years ago
Define bisect and midpoint. Using constructions, draw and label an angle bisector and a perpendicular bisector. Show segment add
larisa [96]

Bisect is a word that means to divide a thing, line or a circle into two parts. While midpoint is known as the middle point that exist in a line segment.

<h3>What is Angle addition postulate?</h3>

This theory states that if two angles are said to be put beside each other, the resulting angle is said to be equal in terms of the sum of the two real angle measures.

Note therefore, that that Bisect is a word that means to divide a thing, line or a circle into two parts. While midpoint is known as the middle point that exist in a line segment.

Learn more about bisector from

brainly.com/question/11006922

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7 0
2 years ago
2 11/12 divided by (-4 1/5)
Yakvenalex [24]

Answer:

-0.69444 or about -0.69 or as a fraction it would be -25/36

Step-by-step explanation:

You can change 2 11/12 to and improper fraction, 35/12. You can also change -4 1/5 to an improper fraction, -21/5. Then you need to flip -21/5 to -5/21. You can work it out to get an improper fraction, to then follow and get -25/36 or -0.69.

6 0
4 years ago
What is4-8a=4(5-3a)​
kenny6666 [7]

Answer:

a=4

Step-by-step explanation:

<u>Question: 4-8a=4(5-3a)</u>

<u />

1) Distribute 4 to 5 and -3a:

4-8a=20-12a

2) Add 12a to both sides:

4+4a=20

3) Subtract 4 from both sides:

4a=16

4) Divide both sides by 4:

a=4

Footnotes:

- The <em>Distributive</em> property says a(b+c)=ab+ac

7 0
3 years ago
Read 2 more answers
PLEASE HELP WILL MARK BRAINLIEST FOLLOW THE LEARNING TARGETS
Daniel [21]

Answer:

c

Step-by-step explanation:

There are 20 letters in pattern shown

So 20 * 7 = 140th letter

140th letter is d

So 140 + 7 = 147

abcd abc

c is the answer

5 0
3 years ago
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