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allochka39001 [22]
3 years ago
6

Triangle ABC is shown below

Mathematics
1 answer:
andreev551 [17]3 years ago
5 0
Based on your question where as an image which shows a triangle ABC and has an interior angle in a total of 180 so the ask is which of the following is reason could be used in answering the blank space in the diagram and i think the answer would be Definition of Supplementary Angle
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There are a total of 66 students in the
attashe74 [19]

Answer:

A = 26

Step-by-step explanation:

sum of students = classA + classB + classC

let's say classA = A, classB = B, and classC = C

A + B + C = 66

class A has five more students than class B, so A = 5 more than B so A = 5+B

class C has 2 less students than class B, so C = 2 less than class B = B -2, so C = B-2

A + B + C = 66

A = 5+B

C = B-2

substitute 5+B for A and B-2 for C in the first equation to limit this to one variable (B)

(5+B) + B + (B-2) = 66

3B + 3 = 66

subtract 3 from both sides to isolate the variable and its coefficient

3B = 63

divide both sides by 3 to solve for B
B = 21

A = 5 + B = 5 + 21 = 26

7 0
2 years ago
On the first day it was posted online, a music video got 390 views. The number of
aleksley [76]

Answer:

The answer is 7212 views

Step-by-step explanation:

<h3><u>Given</u>;</h3>
  • A music video got 390 views.
  • The number of views that the video got each day increased by 30% per day.
<h3><u>To Find</u>;</h3>
  • Total views did the video get over the course of the first 13 days

So, For the first day the number of views is 390

Second Day

30% increased of total views

390 × 30 ÷ 100 = 11.7 = 12

390 + 12 = 402

Third Day

30% increased of total views

402 × 30 ÷ 100 = 120.6 = 121

402 + 121 = 523

Fourth Day

30% increased of total views

523 × 30 ÷ 100 = 156.9 = 157

523 + 157 = 680

Fifth Day

30% increased of total views

680 × 30 ÷ 100 = 204

680 + 204 = 884

Sixth Day

30% increased of total views

884 × 30 ÷ 100 = 265.2 = 265

884 + 265 = 1149

Seventh Day

30% increased of total views

1149 × 30 ÷ 100 = 344.7 = 345

1149 + 345 = 1494

Eight Day

30% increased of total views

1494 × 30 ÷ 100 = 448.2 = 448

1494 + 448 = 1942

Ninth Day

30% increased of total views

1942 × 30 ÷ 100 = 582.6 = 583

1942 + 583 = 2525

Tenth Day

30% increased of total views

2525 × 30 ÷ 100 = 757.5 = 758

2525 + 758 = 3283

Eleventh Day

30% increased of total views

3283 × 30 ÷ 100 = 984.9 = 985

3283 + 985 = 4268

Twelth Day

30% increased of total views

4268 × 30 ÷ 100 = 1280.4 = 1280

4268 + 1280 = 5548

Thirteenth Day

30% increased of total views

5548 × 30 ÷ 100 = 1664.4 = 1664

5548 + 1664 = 7212

Thus, Total views did the video get over the course of the first 13 days is 7212 Views.

 

<u>-TheUnknownScientist 72</u>

6 0
3 years ago
PLEASE HELP :( .... PLEASE
8_murik_8 [283]
You have 2 triangles and 3 rectangles. 
Start with a triangle:
area is base side * height / 2 ->  4 * 3 / 2 = 6
The other triangle has the same area: 6

First rectangle: side * other side -> 7 * 5 = 35
Second rectangle: 7 * 4 = 28
Third rectangle: 7 * 3 = 21

Now simply add all this together: 6+6+35+28+21 = 96

5 0
3 years ago
Please help me i beg you!!! 30 points!!!
Westkost [7]
The third is because the prove is x = fifteen and if a number is next to a letter, it means multiply, sorry I could only do one.
6 0
3 years ago
Read 2 more answers
Solve -3 = x + x + x.
kozerog [31]
-3 = x + x + x
-3 = 3x
-3/3 = x
x = -1
6 0
3 years ago
Read 2 more answers
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