1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
antiseptic1488 [7]
2 years ago
11

Dolly is measuring the angles of a triangle. He measures the first two angles of a triangle and gets 30 and 100. How could he fi

nd the measure of the third angle?
Mathematics
2 answers:
Natalija [7]2 years ago
8 0

Answer:

the third angle is 50 degress

Step-by-step explanation:

the angle sum property states that the sum of all the interior angles of a triangle is 180.

therefore : 30 + 100 + x = 180

x = 180 - 130

x = 50

Nana76 [90]2 years ago
3 0
The third angle is 5p degrees
You might be interested in
X - y = 2<br> 4x – 3y = 11
swat32

Answer:

<u><em>For x - y = 2</em></u>

You need to find x or y in one of the equations and then substitute that into the other.

So we have;

x-y=2

4x-3y=11

We will take the first equation and find x;

x-y=2

add y to both sides;

x-y+y=2+y

x=2+y

Now we take that answer and substitute it forx in the other equation;

 

4(2+y)-3y=11

8+4y-3y=11

8+y=11

y=3

Now we have what y equals, so we use it in the first equation to find x;

x-3=2

x=5

So we have;

x=5; y=3

Hope you understand!

=)

<u><em>And for 4x – 3y = 11</em></u>

Multiply the first equation by 2 and the second by 3 so that there are the same number of y's in each:

8x - 6y = 22    ...(3)

30x + 6y = -3  ...(4)

 Now add (3) and (4) term by term:

38x + 0 = 19

or

38x = 19

or x = 1/2

Put this back into equation (1)

4*(1/2) - 3y = 11

or

2 - 3y = 11

Subtract 2 from both sides:

-3y = 9

 Divide both sides by -3

y = -3

6 0
3 years ago
Read 2 more answers
Camilla baked 15 cookies with 3 scoops of flour. How many scoops of flour does Camilla need in order to bake 20 cookies? Solve u
omeli [17]

Answer:

camilla needs 4 scoops of flow because 3 is related to 15 bc "5x3=15" and that gives us to only need 1 more cup to get 20 cookies

7 0
3 years ago
Can u guys please help me with my math homework.
Sladkaya [172]
1.) circumference: 2(pi)r (use the pi sign) Area: pi(r^2)

2.) circumference: 2(pi)5=31.4
area: pi(5^2)=78.5

I’m not sure ab number 3 sorry :\
4 0
3 years ago
What are the solutions of x2=-5+8
AveGali [126]

Answer:

x² = -5 + 8

x² = 3

x  = √3 ≈ 1.73

5 0
3 years ago
What is the equation of a line that is parallel to -x+3y=6 and passes through the point (3,5)?
Elena-2011 [213]

For this case we have that by definition, the equation of the line in the slope-intersection form is given by:

Where:

m: It's the slope

b: It is the cut-off point with the y axis

By definition, if two lines are parallel then their slopes are equal.

We have the following line:

-x + 3y = 6\\3y = x + 6\\y = \frac {1} {3} x + \frac {6} {3}\\y = \frac {1} {3} x + 2

Thus, the slope is:m_ {1} = \frac {1} {3}

Then m_ {2} = \frac {1} {3}

So, the line is of the form:

y = \frac {1} {3} x + b

We substitute the point(x, y) :( 3,5)and find b:

5 = \frac {1} {3} (3) + b\\5 = b

Thus, the equation is:

y = \frac {1} {3} x + 5

Answer:

y = \frac {1} {3} x + 5

5 0
3 years ago
Other questions:
  • What is the answer for -8n=13
    12·2 answers
  • Which two points on the number line represent numbers that can be combined to make zero? B and D A and B C and D A and C
    13·2 answers
  • How many lines of symmetry are there in one red rectangle on the american flag?
    14·2 answers
  • I got this paper and it had different graphing calculator questions and on one it says check your answer and I don't know what t
    13·1 answer
  • PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • Find the area of a regular hexagon with a 48- inch perimeter
    10·1 answer
  • A chef can bake 15 pies in one hour. What is the rate in pies per minute?
    14·1 answer
  • Solve the following system of equations using the substitution method.
    10·1 answer
  • I need help i'm struggling with this work
    11·2 answers
  • Melissa has 885 cards and she wants to store them in envelopes. She has 35 envelopes. How many envelopes does she need
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!