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
otez555 [7]
3 years ago
9

Find the solution of this system of equations.

Mathematics
1 answer:
Tems11 [23]3 years ago
3 0

Answer: x=-21, y=-33

x-y=12,\\18x-12y=18 ( divide by 6)\\3x-2y=3,  2nd Eq.\\multiply- first -equation by 2\\\\2x-2y=24, 1st Eq.\\subtract-the- second -equation- from -first\\2x-3x=24-3,\\-x=21 or x=-21,\\\\substitute-the-value-of -x\\-21-y=12,\\y=-21-12= -33\\

Step-by-step explanation:

You might be interested in
Which function in vertex form is equivalent to f(x) = x2 + 8 – 16x?
damaskus [11]

Answer:

f(x)= (x+8)^2 + 200

Step-by-step explanation:

-b/2a gives you the x coordinate of the vertex and then plug it in for x to get the y coordinate. Put it in the formula (f()x= (x-h)^2 +k).

H is the x coordinate and K is the y coordinate

6 0
4 years ago
A rectangle has an area of 12 square feet and a length of 5 feet .what the width
gladu [14]
Area= Length* Width
⇒ 12 ft^2= 5 ft* Width
⇒ Width= 12 ft^2/ 5 ft
⇒ Width= 2.4 ft

The width is 2.4 ft~
6 0
3 years ago
Select all the correct answers.
Phantasy [73]

Answer:

a = 6, b = 8, and c = 10.

Step-by-step explanation:

You can easily use the Pythagorean Theorem to solve all of these.

a = 4; b = 6; c = 8... 4^2 + 6^2 = 16 + 36 = 52. 8^2 = 64. 52 is not equal to 64, so the first choice is not a right triangle.

a = 6; b = 8; c = 10... Well this is a multiple of the 3-4-5 Pythagorean triple, so this is a right triangle.

a = 5; b = 6; c = 761... 5^2 + 6^2 = 25 + 36 = 61. 761^2 = 579121, which is not equal to 61, so the third choice is not a right triangle.

a = 6; b = 9; c = 12... 6^2 + 9^2 = 36 + 81 = 117. 12^2 = 144, which is not equal to 117, so the fourth choice is not a right triangle.

The only case where there is a right triangle is the second choice, where a = 6, b = 8, and c = 10.

Hope this helps!

3 0
3 years ago
Read 2 more answers
The circular opening of a vase has an inside diameter of 13.5 cm.
Sunny_sXe [5.5K]

Answer:

Area = 143cm^2

Step-by-step explanation:

Given

Shape: Opening of a circular vase

Diameter =13.5cm

\pi = 3.14

Required

Determine the area

This opening implies a circle; hence the area will be calculated using area of a circle.

Area = \pi r^2

Solve for radius (r)

r = \frac{d}{2}

r = \frac{13.5\ cm}{2}

r = 6.75\ cm

Substitute 6.75 for r in Area = \pi r^2

Area = 3.14 * 6.75^2

Area = 143.06625

Area = 143cm^2 --- Approximated

4 0
3 years ago
One half of a melon was shared equally among 3 people. What fraction of the whole melon did each person get? explain
jonny [76]

Answer:

1/2

Step-by-step explanation:

Given data

Total melon= 1 1/2

In simple fraction= 3/2

DIvide 3/2 by 2

= 3/2/3

=3/2 * 1/3

=3/6

= 1/2

Hence each person will get 1/2 of  the whole water melon

3 0
3 years ago
Other questions:
  • The height and sides of a triangle are four consecutive integers. the height is the first integer, and the base is the third int
    11·1 answer
  • Suppose that a coin is tossed three times and the side showing face up on each toss is noted. Suppose also that on each toss hea
    8·1 answer
  • D. 25 <br> Math question please help
    13·1 answer
  • 5miles from 16miles what is the increase
    6·1 answer
  • In order to make an A on her project, Sarah needs at least 160 points. She has already turned in part of her work and has been g
    8·1 answer
  • What's the awnser for this ×+5=-3×+25
    15·2 answers
  • The product of 40 and distance to the finish line
    13·2 answers
  • I need help with math
    8·1 answer
  • A shelf holds 12 books in a row. How many ways are there to choose five books so that no two adjacent books are chosen
    14·1 answer
  • (-412)+3=
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!