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Soloha48 [4]
1 year ago
14

I will give branliest pls help

Mathematics
1 answer:
Ulleksa [173]1 year ago
6 0

Due to the fact that one outside angle of a triangle is equal to the sum of its other two angles, all of its angles add up to 180 degrees.

In other words, the third angle must be added to the other two angles in the triangle (the ones that add up to generate the outer angle) to form a 180-degree angle.

How do you determine if a triangle's angles are 180 degrees?

How Can I Determine a 180 Degree Angle?

  • Create a straight line to represent the angle's arm.
  • At one end of the line, place a dot.
  • Now position the protractor's center above the dot or vertex and line up the protractor's baseline with the angle's arm.
  • Put a dot where the angle is 180 degrees.

To learn more about Angles refer to:

brainly.com/question/25716982

#SPJ13

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OverLord2011 [107]
A a numerical expression
7 0
3 years ago
The hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. Forty-five copies of the book weigh
konstantin123 [22]

Answer:

33 copies were paperback and 12 were hardcover.

Step-by-step explanation:

Let h represent the number of hardcover copies and p represent the number of paperback copies.

We know that the total number of copies was 45; this gives us the equation

h+p = 45

We know that each hardcover copy is 7 ounces; this gives us the expression 7h.

We also know that each paperback copy is 5 ounces; this gives us the expression 5p.

We know that the total weight was 249 ounces; this gives us the equation

7h+5p = 249

Together we have the system

\left \{ {{h+p=45} \atop {7h+5p=249}} \right.

We will use elimination to solve this.  First we will make the coefficients of the variable p the same; to do this, we will multiply the top equation by 5:

\left \{ {{5(h+p=45)} \atop {7h+5p=249}} \right. \\\\\left \{ {{5h+5p=225} \atop {7h+5p=249}} \right.

To eliminate p, we will subtract the equations:

\left \{ {{5h+5p=225} \atop {-(7h+5p=249)}} \right. \\\\-2h=-24

Divide both sides by -2:

-2h/-2 = -24/-2

h = 12

There were 12 hardcover copies sold.

Substitute this into our first equation:

12+p=45

Subtract 12 from each side:

12+p-12 = 45-12

p = 33

There were 33 paperback copies sold.

3 0
4 years ago
Read 2 more answers
Henry and 28 classmates are going to the roller skating rink. each van can hold 11 students . If all of the van are full except
lawyer [7]

you divide 29:11= 2 7/11  

so you have 2 full vans and one with 7 students.

so yes the answer is 7

5 0
3 years ago
Read 2 more answers
11y - |x|; if x = -10 and y = 2
bonufazy [111]

Answer:

- 8

Step-by-step explanation:

x = - 10

y = 2

I x I

= I - 10 I

= 10

y - I x I

= 2 - 10

= - 8

7 0
3 years ago
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Help pls asap!!! i will give brainliest!
Marat540 [252]

Answer:

y = -5x + 4

Step-by-step explanation:

slope = -5x

y-intercept = 4

y = mx + b --> slope intercept formula

y = -5x + 4 --> final solution

3 0
3 years ago
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