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
Serggg [28]
3 years ago
12

I️ need help with the your turn part

Mathematics
1 answer:
Helen [10]3 years ago
7 0

Because the angle is a straight angle, it means that the total of DEC and CEF would be 180º. (CEF + DEF = 180º) With this information we can make the equasion:

(11x - 12) + (2x + 10) = 180

first, to find x:

to simplify (11x - 12) + (2x + 10) = 180, you add the two equations:

13x - 2 = 180

13x = 182

x = 182/13

x = 14

Now, insert the x (which we found that is 14) to each equation.

DEC: (11 x 14 - 12)

= 154 - 12 = 142

m DEC is 142º.

CEF: (2 x 14 + 10)

=28 + 10 = 38

m CEF is 38º.

<em>check: (CEF + DEC = 180º)</em>

<em>38 + 142 = 180 </em>

therefore, the answers are correct :D

You might be interested in
How to write out one hundred four and 2thousands
lions [1.4K]

104.002 i think this is the answer

8 0
3 years ago
Read 2 more answers
Which expression is equivalent to
cestrela7 [59]

Answer:

Step-by-step explanation:

A

7 0
3 years ago
Read 2 more answers
Sisters Rosey and Valerie specialize in two different triathlon events. Rosey finds that her average cycling speed is 7 mph fast
Musya8 [376]

Valerie's running speed is 16 miles per hour.

6 0
3 years ago
A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second. After approximately 2.3
Jobisdone [24]
That would be 
 -10(1.5)^2 + 20(1.5) + 8  =   15.5 meters
5 0
3 years ago
Read 2 more answers
HELLLLP WILL GET F AND FAIL 5TH GRADE IF INCORRECT!!!!! 15 PTS!!!
Lelechka [254]

Answer:

1 1/8 or 9/8

Step-by-step explanation:

5 1/2-4 3/8= 1/ 1/8

3 0
3 years ago
Other questions:
  • What is the equation of the line that is parallel to y = negative two-thirds x + 4 and that passes through (–2,–2)?
    7·1 answer
  • What is the answer to this quetion
    5·2 answers
  • Estimate V130 to the nearest integer.
    5·1 answer
  • All of the following ratios are equivalent except _____. Answers
    11·2 answers
  • Xavier performs the elementary row operation represented by Ri - R, on matrix A.​
    7·1 answer
  • What is the mapping notation that will transform triangle ABC to triangle A'B'C'?
    12·1 answer
  • I will give brainlyest
    8·1 answer
  • Alexis cell phone company charges her $35 a month for phone service plus $0.40 for each text message. How many text message does
    9·1 answer
  • Sarah is buying some school clothes.
    15·1 answer
  • The difference of two complementary angles is 48. Find the measures of the two angles.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!