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
Katen [24]
2 years ago
7

The first angle of a triangle is 4 times the number of degrees in the second angle. The third angle of the triangle is 12 degree

s less than the second angle. How many degrees are in each angle of the triangle ?
Mathematics
1 answer:
xenn [34]2 years ago
5 0

Answer:

1st angle: 128°

2nd angle: 32°

3rd angle: 20°

Step-by-step explanation:

You can start by setting up an equation. 180=x+4x+x-12. It sould all add up to 180 because angles of a triangle always add up to 180, and x represents the second triangle (you use the second angle as x because the other two angles elaborate off of this second angle).  Then you solve. Add 12 to 180 and get 192. Then you can add like terms and make it 192=6x (you add the x's together). Lastly divide 192 by 6 and get 32. So the measurement of angle 2 is 32°. Then you multiply 32 by 4 to get the 1st angle measure, being 128. Lastly subtract 12 from 32 and get 20 for angle three. To check you work add the three angle measures you got and see if they =180, if so then you are correct.

You might be interested in
Solve the inequality and graph its solution: 5n – 10 > 25
kozerog [31]
5n  > 35 (Addition property of equality)
n > 7 (division property of equality)
5 0
2 years ago
Read 2 more answers
Car A travels at an average speed of 45 miles per hour. Car B travels at an average speed of 40 miles per hour. In the time it t
attashe74 [19]
Setup
45t = 40t + 60
5t = 60
t = 12

car A = 45 * 12 = 540 mi
car B = 40 * 12 = 480 mi
5 0
3 years ago
Andrew got a 95% on the test. If there were 80 questions on the test, and every question worth the same, how many questions did
Lemur [1.5K]

Answer:

Out of 80 questions Andrew did 76 questions correctly.

Step-by-step explanation:

Total number of questions is 80.

It is given that he got 95% on the test. It means he answered 95% of the total questions correctly.

First we have to calculate 95% of 80.

80\times \frac{95}{100}=76

The 95% of 80 is 76. So, 76 answers are correct.

Therefore out of 80 Andrew did 76 questions correctly.

8 0
3 years ago
Read 2 more answers
How do you use a scientific calculator?
egoroff_w [7]
Try to start by reading the manual it came with. If it didn't come with a manual, then your teacher in school will teach you how to use it for specific commands. Otherwise it's just like using a regular calculator but with the ability to do more things, what do you need to know on it?
8 0
3 years ago
A washer and a dryer cost 792 combined. The washer costs 92 more than the dryer. What is the cost of the dryer?
WITCHER [35]

Answer:

divide 792 by 2

792÷2=304

then add 92 to the cost 304

304+92=396

6 0
1 year ago
Other questions:
  • Can sixty go into ninety
    11·1 answer
  • Here is a data set: 5 10 10 10 15 100 after studying the data, the research realized that the value 100 was meant to be recorded
    13·1 answer
  • N exponential function and a quadratic function are graphed below. Which of the following is true of the growth rate of the func
    7·1 answer
  • Please help !! And I'll give brainlist
    11·2 answers
  • In a class the ratio of number of boys to the number of girls is 4:5. If the number of girls is 20, find the number of boy ??
    9·2 answers
  • IF 2^x=10 AND 10^y =128 ,find xy
    6·1 answer
  • What is the simplest form of: plz explain how u got it
    6·1 answer
  • I need help plz answer!!!
    15·2 answers
  • Please help! Greatly appreciated
    13·2 answers
  • 2 root 5 x 5 root 5 sgsvbhmdhmcbjkd jklcdvncbcbxcvzbvk
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!