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
slava [35]
3 years ago
15

Please help this is TIMED!!

Mathematics
2 answers:
Alja [10]3 years ago
6 0

Answer: x = 15, y = 6

Step-by-step explanation:

1). (7y - 1) + (9x + 4) = 180 (the are supplementary angles)

2). (4x-7) + (7y - 1) + 86 = 180 (sum of angles in a triangle)

7y - 1 + 9x + 4 = 180

7y + 9x + 3 = 180

9x + 7y = 177

4x - 7 + 7y - 1 + 86 = 180

4x + 7y - 8 + 86 = 180

4x + 7y + 78 = 180

4x + 7y = 102

Now solve the system of equations

subtract the two equations

9x + 7y = 177

-(4x + 7y) = -(102)

-----------------------------

5x = 75

x = 15

Substitute the value of x into either equation to find y

4(15) + 7y = 102

60 + 7y = 102

7y = 42

y = 6

Gennadij [26K]3 years ago
5 0

Answer:

x=38

y=24

Step-by-step explanation:

You might be interested in
How do I do a ratio?​
Kamila [148]
A ratio is comparing one thing to another (numbers in this case). You can write ratios in many ways
here’s three different ways.
There are four girls and and 2 boys.
The ratio of girls to boys is:
4:2
4 to 2
4/2

*THE RATIO MUST ALWAYS BE IN ORDER!!! If boys come first in the problem WRITE THE BOYS NUMBER FIRST! If girls come first, WRITE THE GIRLS FIRST IN THE RATIO!!! (That’s a very common mistake) hope this helps!
6 0
3 years ago
Find the domain and range of the following function ƒ(x) = 5|x - 2| + 4
Inessa [10]

Answer:

this is the answer fod this lroblsm

6 0
3 years ago
What is 48% of 60? This is for Algebra 1! :)
coldgirl [10]

Answer:

48% of 60 is 28.8.

4 0
3 years ago
Read 2 more answers
This graph shows how much Anthony earns babysitting, compared with the number of hours he works. Select the correct statement ab
dimaraw [331]
B. For each hour he works, his earnings go up by $8
3 0
3 years ago
Find the solutions<br> -2x+8y=14 <br> -2x-2y=-26
emmasim [6.3K]
X=-33 y= 10

Leave first row the same multiply 2nd row by -1
-2x+8y=14
2x+2y=26
10y= 40
Y=4
-2x+8(10)=14
-2x+80=14
3 0
3 years ago
Other questions:
  • there are 120 people attending a wedding reception. There are 16 tables. Some are round and some are square. the round table sea
    6·1 answer
  • Clara is taking a medicine for a common cold. Her body metabolizes the medicine over a certain time interval. The table below sh
    7·2 answers
  • Original price 195 sale price 136.50 what is percent discount
    13·2 answers
  • At the movie theatre, child admission is $5.70 and adult admission is $9.75 . On Friday, 173 tickets were sold for a total sales
    9·1 answer
  • Sydney invested $440 in an account paying an interest rate of 5.6% compounded daily. Assuming no deposits or withdrawals are mad
    11·1 answer
  • 3x-15=17-x. Check your solution
    9·2 answers
  • Please please please tell the answer​
    5·2 answers
  • What is the solution to 13x+5=96
    12·2 answers
  • I forgot how I check to see if my answer is right :,) can anyone help me ;v; The answer is right I just forgot how to check it​
    15·1 answer
  • Find the values of X and Y in the parallelogram.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!