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
abruzzese [7]
3 years ago
15

Use elimination to solve the system of equations. 2X - 3Y = 9 -5X - 3Y = 30

Mathematics
1 answer:
shtirl [24]3 years ago
6 0

Answer:

X = -3

Y = -5

Step-by-step explanation:

    2X - 3Y = 9

<u>- (-5X - 3Y) = 30</u>

    7X + 0Y = -21

               X = -3

2(-3) - 3Y = 9  

        - 3Y = 15

            Y = -5

You might be interested in
How many triangles can be formed with segments measuring 4. 7 m, 1. 6 m, and 2. 9 m? none one more than one.
Svet_ta [14]

The sum of the length of the two sides of the triangle must be greater than the length of the third side. None of the triangles is formed. Then option A is correct.

<h3>What is the triangle?</h3>

Triangle is a polygon that has three sides and three angles. The sum of the angle of the triangle is 180 degrees.

The sides of the triangle are 4.7 m, 1.6 m, and 2.9 m.

The condition will be

1.6 + 2.9 \ngtr  4.7

We know that the sum of the length of two sides of the triangle must be greater than the length of the third side.

Hence, none of the triangles is formed.

Thus, option A is correct.

More about the triangle link is given below.

brainly.com/question/25813512

4 0
2 years ago
Do ΔCBG and ΔFEG in the figure appear to be similar? Why or why not?
Mama L [17]

Answer: Option C. They're not similar because only one pair of corresponding angles in the two triangles is congruent.

Solution:

The only one pair of corresponding angles in the two triangles is congruent is the angle BGC in ΔCBG and the angle FGE in ΔFEG, because they are vertical angles (opposite by the vertex)

6 0
3 years ago
Read 2 more answers
Every year, the amount of CO2 in the atmosphere increases by a factor of
MrRa [10]
About 0.5 percent per year
8 0
3 years ago
How do you write the equation of this description: the graph of a parabola has a vertex of (2,3) and vertically stretched by 3
Mademuasel [1]

The equation of parabola is  y = 3x²- 12x+ 15.

<u>Step-by-step explanation:</u>

The equation of the parabola is given as y = x².

If it has a vertex then the equation can be written as,

y = a(x-h)² + k

where (h, k ) is the vertex and a is the stretching or compressing factor.

So here the vertex is (2,3) and it is vertically stretched by 3.

So the equation is given as,

y = 3(x-2)² + 3

y = 3(x² -4x+4) + 3

 = 3x² - 12x + 12 + 3

y = 3x²- 12x+ 15 is the equation of the parabola.

3 0
3 years ago
If the radius of the circle is multiplied by a factor of 3, then the area of the circle is multiplied by a factor of
Oksi-84 [34.3K]
\bf \textit{area of a circle}\\\\&#10;A=\pi r^2\quad &#10;\begin{cases}&#10;r=radius\\&#10;-----\\&#10;r=\stackrel{r\times 3}{3r}&#10;\end{cases}\implies A=\pi (3r)^2&#10;\\\\\\&#10;A=\pi (3^2r^2)\implies A=9(\pi r^2)

notice, if the original area was πr², then the new area has a factor in front of it, that much.
8 0
3 years ago
Other questions:
  • Answer using the graph
    9·1 answer
  • Divide £56 in a ratio of 5:3
    6·1 answer
  • Its cost $3.55 to make a sandwich at the local deli shop to make a profit the deli sells it at a price that is 160% of the cost.
    9·2 answers
  • A rectangular tank that is 3 feet long, 6 feet wide, and 3 feet tall is filled with a liquid that has a density of p pounds per
    10·1 answer
  • Write the point- slope form of the equation of the line through the given point with the given slope
    11·1 answer
  • Hw help ASAP PLZZZZZZ
    6·1 answer
  • The quotient of 37.2/6 is?
    5·2 answers
  • A red panda at the zoo eats 1/10 pounds of food
    6·1 answer
  • Find the missing side lengths Leave your answers as radicals in simplest form​
    13·1 answer
  • In a race , Ram covers 5 km in 20 min. How much distance will he cover in 100 min
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!