3 years ago

Solve for x. 3.rº 80° 20° A. 10 B. 20 C. 50 D. 80

Mathematics

2 answers:

ohaa [14]3 years ago

6 0

Answer:

x = 20°

Step-by-step explanation:

The angle measures should add up to 180 degrees. So that leaves us with 100 degrees left to find if we take out the 80 given.

3x + 2x simplifies to 5x. 5x must equal 100.

100/5 = 20.

Therefore x = 20.

Lesechka [4]3 years ago

4 0

B:20

Hope this helps!

You might be interested in

The price of a gallon of unleaded gas has dropped to $2.81 today. Yesterday's price was $2.86 . Find the percentage decrease. Ro

Black_prince [1.1K]

-1.74825174825% round to nearest tenth: 1.7%

6 0

3 years ago

Read 2 more answers

Junior's brother is 1\dfrac121 2 1 1, start fraction, 1, divided by, 2, end fraction meters tall. Junior is 1\dfrac151 5 1 1

Oksana_A [137]

Answer:

1 4/5 meters

Step-by-step explanation:

Juniors brother = 1 1/2 meters tall

Junior is 1 1/5 of his brother height

Junior = 1 1/5 of 1 1/2

= 6/5 × 3/2

= 6 * 3 / 5 * 2

= 18/10

= 1 8/10

= 1 4/5 meters

Junior is 1 4/5 meters tall

6 0

3 years ago

I WILL MARK BRAINLIEST HELP

lyudmila [28]

Answer:

Option 3 and 5

Step-by-step explanation:

5 0

3 years ago

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this seq

frez [133]

<h3>Answer: 144</h3><h3>Step-by-step explanation:</h3><h3 />

Since, the first 9 multiple of 4 starts from 0 are,

0, 4, 8, 12, 16, 20, ................

Which is an AP,

Having the first term, $a_1 = 0$

And, the successive difference, d = 4,

Since, the sum of the n term of an AP,

$S_n = \frac{n}{2}[2a + (n-1)d]$

Hence the sum of 9 term of the above AP,

$S_9 = \frac{9}{2}[2\times 0 + (9-1)\times 4]$

$S_9 = \frac{9}{2}(0 + 8\times 4)$

$S_9 = \frac{9}{2}(32)$

$S_9 = \frac{288}{2}=144$

6 0

3 years ago

Simplify: 4(x+10) -30 + 6x

bonufazy [111]

Answer:

10x+10

Step-by-step explanation:

distrubute 4(x+10)-30+6

subctract 4x+40-30+6

combine 10x+10

6 0

3 years ago