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
Leni [432]
3 years ago
12

12+90+x=180 I need help fast

Mathematics
1 answer:
Vinil7 [7]3 years ago
3 0

Answer:

78

Step-by-step explanation:

102+x=180

x=180-102

x=78

You might be interested in
A building makes a 90° angle with the ground. A ladder leans against the building, making a 110° exterior angle with the ground.
liberstina [14]

<u>Answer:</u>

A building makes a 90^{\circ} angle with the ground .The two interior angles are 70^{\circ} and 20^{\circ}

<u>Solution: </u>

Given, a ladder which is against the building wall makes an exterior angle of 110^{\circ}

And building makes a  90^{\circ} angle with the ground.

So, altogether it makes a right angle triangle with ladder as hypotenuse and ground as base leg and building as another leg.  

Now, we know that, sum of exterior angles and interior angles equals to 180^{\circ}

Here, in the case of ground and ladder, exterior angle is 110^{\circ} and interior angle is unknown.

Exterior angle + interior angle = 180

110 + interior angle = 180

Interior angle = 180 – 110

Interior angle = 70^{\circ}

We have found one of the two interior angles of right angle triangle.

We know that, sum of angles in a triangle is 180 degree

Known Interior angle + unknown interior angle + right angle = 180

70 + unknown interior angle + 90 = 180

Unknown interior angle + 160 = 180

Unknown interior angle = 180 - 160

Unknown interior angle = 20^{\circ}

Hence the two interior angles are  70^{\circ} and 20^{\circ}

7 0
3 years ago
The ratio of the number of peas Julia had to the number of peas Vlada had was 3:2. After Julia gave Vlada 15 peas, she still had
inn [45]
J:V = 3:2

3:2 x 40 = 120:80

J: 120-15 = 105
V:  80+15 = 95

J:V is now 105:95

The original amount of peas that Julia had at first was 120.
3 0
3 years ago
Read 2 more answers
Midpoint of (1,3) and (4,-5)
crimeas [40]

Answer:

The rigth answer is, ( 5/2 , -1 )

Step-by-step explanation:

To find the midpoint we use the respective formula:

m = ( x1 + x2 / 2 ,  y1 + y2 / 2 )

We replace:

m = ( 1 + 4/2  ,  3 + (- 5) / 2 )

We solve:

m = ( 5/2 ,  -1 )

5 0
3 years ago
WILL GIVE BRAINLIST
madam [21]

Answer:

Ted

Step-by-step explanation:

4 0
3 years ago
5th grade math. correct answer will be marked brainliest.
Alex17521 [72]

Answer:

I think it's like the top answer is 6 the bottom 36.

5 0
2 years ago
Read 2 more answers
Other questions:
  • If A college student purchased a used car for $4000. He paid 8% down and then paid 18 monthly payments of $216.79. Determine the
    13·1 answer
  • Larry stencils this pattern to make a border at the top of his bedroom walls. Describe the pattern. Draw what might be the missi
    6·2 answers
  • PLEASE HELP ME!!! 5 POINTS!!!
    15·2 answers
  • What is 3 ÷ 2 5 ? To find the quotient, jump groups of . will give you 100 points
    7·2 answers
  • A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure?
    14·1 answer
  • ASAP I NEED AN ANSWER TO THIS PROBLEM
    12·1 answer
  • How many terms are in the algebraic expression 2x-9xy+17y?
    9·1 answer
  • I need help with this math problem.
    6·1 answer
  • I don't get this problem can you guys help me
    10·2 answers
  • What is the area of the rectangle
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!