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
andreyandreev [35.5K]
4 years ago
15

X-3y=-1 x-2y=-5 in elimination

Mathematics
1 answer:
LuckyWell [14K]4 years ago
3 0

Answer:

{ x = -13, y = -4

Step-by-step explanation using elimination:

Solve the following system:

{x - 3 y = -1 | (equation 1)

{x - 2 y = -5 | (equation 2)

Subtract equation 1 from equation 2:

{x - 3 y = -1 | (equation 1)

{0 x+y = -4 | (equation 2)

Add 3 × (equation 2) to equation 1:

{x+0 y = -13 | (equation 1)

{0 x+y = -4 | (equation 2)

Collect results:

Answer:  {x = -13 , y = -4

You might be interested in
The circumference of heileen’s basketball is 30 inches. What is the approximate diameter of the basketball?
adoni [48]

Answer:

9.55 in

Step-by-step explanation:

The formula for the circumference of a circle (or the circum. of a basketball) is C = πd, where d is the diameter.

Here C =30 in  =  πd, so  

d = (30 in) / π

   = 9.55 in, approx.

6 0
3 years ago
Read 2 more answers
Jasmine wants to use her savings of $1,128 to buy video games and music cds. The total price of the music cd she bought was $72.
Firlakuza [10]
24 video games.

First you subtract $72 from $1,128 then you divide $43 from $1,056 and you get 24.5581395
So the most video games jasmine can buy is 24.
8 0
4 years ago
Read 2 more answers
PLEASE HELP?
Darya [45]

Answer:

1/3

Step-by-step explanation:

The number of people over 40 is 20 + 30 + 35 = 85.

So the probability is 85/255, which reduces to 1/3.

8 0
3 years ago
!!!!!!!!PLEASE HURRY !!!!!!!! The length of the base of a rectangular prism is 8 inches. The width of the prism is 4 1/2inches,
Strike441 [17]

Answer:

It is b

Step-by-step explanation:

5 0
3 years ago
Find the measure of one interior angle in each regular polygon. Round your to nearest tenth if necessary.
e-lub [12.9K]

The value of the interior angle of the regular polygon is calculated using the formula (n - 2) 180 / n where n is the number of sides of the regular polygon.

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

A regular polygon refers to a multi-sided convex figure where all the sides are equal in length and all the angles have equal degree measures.

The triangle has 3 interior angles of  60  degrees

The square has 4 interior angles of  90  degrees.

The pentagon has 5 interior angles of  108  degrees  .

The formula for the interior angle of a regular polygon is given by,

                            ( n − 2 ) 180  /  n

where n refers to the number of sides.

Triangle : (3 - 2) 180 / 3 = 60 degree.

Square : (4 - 2) 180 / 4 = 90 degree.

Pentagon: (5 - 2) 180 / 5 = 108 degree.

5 0
3 years ago
Other questions:
  • Last year, the average math SAT score for students at one school was 475. The headmaster then introduced a new teaching method h
    11·2 answers
  • There are 25 paper plates in a package how many packages are needed if 160 students are to attend a picnic​
    14·2 answers
  • Through: (-1,-1), perp.<br> to x=0
    13·1 answer
  • If a sausage-making machine produces 3,000 sausages in h hours, how many sausages can it produce in m minutes?
    12·1 answer
  • The following three shapes are based only on squares, semicircles, and quarter circles. Find the perimeter and the area of each
    15·1 answer
  • Describe 2 ways to show 2 fractions are equivalent
    11·2 answers
  • HELP PLEASEEEE &gt;.&lt; Its 8 pm and I'm tired :c
    14·1 answer
  • Factor the Expression. 8x - 40 *<br> (8x - 5)<br> 8(x - 5)<br> 8(x - 40)
    5·1 answer
  • It's about 5 AM, haven't slept in 28 hours, need help.
    9·1 answer
  • the average height of a class of 18 students is 105cm. After the arrival of 7 new students the average decreases by 5cm. Find su
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!