All categories

3 years ago

Plz help me!! will award brainliest

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

7 0

Answer:

see below

Step-by-step explanation:

We are looking for the coefficient matrix

The coefficients of the first equation are 2 -1

And the second equation are 1 1

We write them in the same order x y

2 -1

1 1

I have never seen an official name for the other 2

0 -1

-3 1

has the solutions substituted in for the x coefficients

It is used to help determine the x value

2 0

1 -3

has the solutions substituted in for the y coefficients

It is used to help determine the y value

Without choices, this is the best I can give you

You might be interested in

X is at least 5 and at most 10

VikaD [51]

Hello!

You can write this as an inequality

x is at least 5 which means x is equal to or greater than 5

$5 \leq x$

x is at most 10 which means x is less than or equal to 10

$x \leq 10$

Put these two together to get the answer

$5 \leq x \leq 10$

Hope this helps!

8 0

3 years ago

Help me with this problem please?

Gwar [14]

15(4/5 x + 1/6)=15(8/3 x-2)
12x + 2.5 = 40x - 30
12x - 12x +2.5 = 40x - 12x - 30
2.5 = 28x - 30
2.5 + 30 = 28x - 30 + 30
32.5 = 28x
32.5/28 = 28x/28
x=9/56

7 0

3 years ago

Question 1

pentagon [3]

Answer:

Minutes: | Charge:

0 2%

5 22%

10 52%

15 72%

Step-by-step explanation:

6 0

4 years ago

What is the solution of this system of linear equations? 3y = x + 6 y – x = 3

Fofino [41]

First isolate y by adding x to both sides in y-x=3 and getting y=x+3
Step 1: substitute x+3 for y in 3y=x+6 to get 3(x+3)=x+6
Step 2: distribute 3x+9=x+6
Step 3: subtract like terms 2x=-3
Step 4: divide x=-3/2

substitute -3/2 for x in y=x+3 to get
y=-3/2+3
y=3/2

answer: y=3/2 x=-3/2

5 0

3 years ago

Find the perimeter of the figure below, in centimeters

Anna11 [10]

Answer:

Step-by-step explanation:

(7.7 * 2) + (9.6 * 6) = 74

7 0

2 years ago