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
xz_007 [3.2K]
3 years ago
15

5x – 12y – 17 = 0 1*9(x + 2) - (y + 1) + 3 = 0

Mathematics
1 answer:
valentina_108 [34]3 years ago
3 0

Answer: x=\frac{12y+17}{5}

y=\frac{-5x+17}{-12}

x=\frac{y-20}{9}

y=9x+20

Step-by-step explanation:

5x-12y-17=0 (plus 17 from both sides)

5x-12y=17 (plus 12y from both sides)

5x=12y+17 (divide 5 from everything)

x=\frac{12y+17}{5}

5x-12y-17=0 (plus 17 from both sides)

5x-12y=17 (minus 5x from both sides)

-12y=-5x+17 (divide everything by -12)

y=\frac{-5x+17}{-12}

1*9(x+2)-(y+1)+3=0 (distribute 9 to x and to 2) (distribute -1 to y and to 1)

1*9x+18-y-1+3=0 (times 9x by 1)

9x+18-y-1+3=0 (combine like terms)

9x-y+20=0 (minus 20 from both sides)

9x-y=-20 (plus y to both sides)

9x=y-20 (divide 9 from both sides)

x=\frac{y-20}{9}

1*9(x+2)-(y+1)+3=0 (distribute 9 to x and to 2) (distribute -1 to y and to 1)

1*9x+18-y-1+3=0 (times 9x by 1)

9x+18-y-1+3=0 (combine like terms)

9x-y+20=0 (minus 20 from both sides)

9x-y=-20 (minus 9x from both sides)

-y=-9x-20 (divide -1 from everything)

y=9x+20

You might be interested in
The two triangles are similar. Which statements are true? Select each correct statement. ∠A≅∠D BDBA=DEAC BDBA=DEBC ∠B≅∠E Triangl
horsena [70]

Answer:

SR/BC=RT/CA    And  /R=/C  S B And D

Step-by-step explanation:

Just Look at them then compare its pretty simple you just have to think about it.

5 0
2 years ago
Please help, I'm stuck on this answer.
babymother [125]
I agree with what that person told you. The expression -2(x+10) is equivalent to -2x-20

Multiply the outer -2 with the inner x to get -2 times x = -2x

Multiply the outer -2 with the inner term 10 to get -2 times 10 = -20

So overall, -2(x+10) = -2x-20

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

So that's how we're able to go from this -2(x+10) \ge 75 to this -2x-20 \ge 75

The only thing that changes is the left side. The inequality sign will not flip. It only flips if we multiply both sides by a negative number. 

8 0
2 years ago
Read 2 more answers
PLEASE HELP!! 25 POINTS AWARDED
kondaur [170]

Answer:

The following numbers ARE functions:

2, 3, 6, 7, 9, 12

Step-by-step explanation:

A function is only possible if the x values have NO REPEATING NUMBER!!!

Every number that isn't mentioned above has at least 1 number in it's x-values that repeats.

<u>Question 1</u> has the 8 and 4 with 2 numbers.

<u>Question 4</u> the 3 repeating. (There are 2 dots over the 3)

<u>Question 5</u> has numbers 1 and 5 repeating many times

<u>Question 8</u> numbers 1 and 2 are repeated twice

<u>Question 10</u> number 3 repeats twice

<u>Question 11</u> has the 1 repeated

8 0
3 years ago
A flagpole is 12.5 m tall. It casts a 17.5 m shadow. How tall is a nearby radio tower that casts a 61.25 m shadow? _____
tresset_1 [31]

Answer:

,

Step-by-step explanation:

7 0
2 years ago
Mary
olasank [31]

Answer:

$45

Step-by-step explanation:

(25*1)+(4*5)=

25+20=

45

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the area of this figure?
    9·1 answer
  • Multiply: 4 5/7 x 6 3/7​
    15·2 answers
  • Can i be happy? <br> Can i be a person is perfect?
    12·2 answers
  • A basket ball that has a diameter of 20cm is placed in a box so that it touches all inner sides of a box. What is the volume NOT
    5·1 answer
  • Nate and his sister Natalie are walking around the track at school and they’re walking at a steady rate. Nate walks 5 feet in 2
    10·2 answers
  • Can someone please solve these questions
    13·1 answer
  • URGE
    6·1 answer
  • If 0.142857142857......is expressed in the form m/n, then what is the value<br>of (2m + n)?​
    12·1 answer
  • Need help, please! (I used all my points.) marking brainiest if right!<br> Hint: decimal form.
    7·1 answer
  • 4. Jacki's new coat was on sale for 40% of the original price. If Jacki paid $80 for her coat, what was the original price? ​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!