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
In-s [12.5K]
3 years ago
9

3x+6y=-18

Mathematics
2 answers:
anyanavicka [17]3 years ago
4 0

Answer:

Answer is <u>-3</u> x + <u>2</u> y = <u>-22</u>

<u />

Step-by-step explanation:

Given System of equations,

3x + 6y = -8 ............(1)

2y = 3x - 22 ..........(2)

We have to re write second equation so that terms in the system align.

In equation (1),

term with x variable and y variable are on LHS while constant term is in RHS.

In equation (2)

term with y variable is in LHS and term with x variable & constant term in RHS.

So, we bring term with x variable form RHS to LHS in equation (2).

we get

2y - 3x  = -22

Now rearranging,

-3x + 2y = -22

Therefore, Answer is <u>-3</u> x + <u>2</u> y = <u>-22</u>

sweet [91]3 years ago
3 0

2y = 3x - 22      subtract 3x from both sides

-3x + 2y = -22

Answer:

\left\{\begin{array}{ccc}3x+6y=-18\\-3x+2y=-22\end{array}\right

You might be interested in
How would I do this? Please explain instead of just giving me the answer.
djverab [1.8K]
According to the Pythagorean theorem, the square of the hypotenuse (the longest side) of a right-angled triangle equals to the sum of the squares of the other two sides. In this case, the ladder is the hypotenuse, which equals to the distance between the bottom of the ladder and the tree + the distance we want to find (x):
5² + x² = 13²
25 + x² = 169
x² = 144
x = √144 = 12.
The distance between the ground and the top of the ladder is 12 ft.

4 0
3 years ago
John, Jim and Joe each went for a medical examination. Their combined height was 5.25 m. If John was 12 cm shorter than Jim and
kolezko [41]

The 5.25 m combined height of John, Jim, and Joe, the 12 cm height difference between John and Jim and the 0.09 m difference in height between Jim and Joe, indicates that solution to the word problem is Joe was 1.73  meters tall

<h3>What is a word problem?</h3>

A word problem is a presentation of a math problem using verbal description rather than numbers, variables and operators.

The combined height of John, Jim and Joe = 5.25 m

John's height = Jim's height - 12 cm = Jim's height - 0.12

Jim's height = Joe's height + 0.09 m

Let <em>h </em>represent Joe's height, we get;

Jim's height = h + 0.09

John's height = h + 0.09 - 0.12 = h - 0.03

John's height = h - 0.03

The sum of the heights is therefore; h + h + 0.09 + h - 0.03 = 3·h + 0.06

The sum of their heights = Their combined height = 5.25 meters

Therefore; 3·h + 0.06 = 5.25

h = (5.25 - 0.06)/3 = 1.73

Joe's height, <em>h</em> = 1.73 meters

Jim's height = 1.73 + 0.09 = 1.82

Jim's height = 1.82 meters

John's height = 1.73 - 0.03 = 1.7

John's height is 1.7 meters

Joe was 1,73 meters tall

Learn more about mathematics word problems?

brainly.com/question/19386917

#SPJ1

4 0
1 year ago
Which shape has 2 parallel sides ready
Irina-Kira [14]

Answer:

You have two sets of parallel sides. A square has two sets of parallel sides, and it has the extra condition that all of the angles are right angles. So a square is definitely going to be a rhombus. Now, all rhombuses have four sides.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Please help!!! 30 minutes left
NeX [460]

Answer:

Option "D" is correct.

Step-by-step explanation:

\frac{a^{3}b^{-2} }{ab^{-4} }

To eliminate negatives

They are interchanged thus it gives us option D.

7 0
3 years ago
Please help picture please
polet [3.4K]

( {9}^{ - 2} )^8 =  {9}^{ - 2 \times 8}  =  {9}^{ - 16}  =   \boxed{\frac{1}{ {9}^{16} } }

6 0
3 years ago
Other questions:
  • Ms. Luna is waterproofing the top of a rectangular wood deck. The width of the deck is 3 m less that the length. The length is 8
    15·1 answer
  • What is the distance between the origin and (−3,−4)? A. 5 B. 7 C. 12 D. 25
    11·2 answers
  • What is equivalent to -1.3 - (-1.9)
    14·1 answer
  • Ashley’s Phone bill went from 32.25 to 18.70 what was the percent of decrease? Plz help a little confused...plz explain how you
    10·1 answer
  • a photograph has a perimeter of 24 in the difference between the photographs Lane and the width is 2 inches. find the length and
    15·1 answer
  • What’s the equation for four times the difference of a number and 7 is 12
    11·1 answer
  • CAN SOMEONE HELP PLEASE !
    5·1 answer
  • Mike had to call a plumber. The plumber charged $55 for the service call plus, plus $22 for parts, and an hourly rate. He worked
    9·1 answer
  • X² + 4x from 5x² + x
    13·1 answer
  • A shelf contains 3 fashion magazines and 4 health magazines. You randomly choose one to read, set it aside, and randomly choose
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!