All categories

2 years ago

Solve by elimination 10x-9y=-10 20x-18y=-28

Mathematics

1 answer:

tekilochka [14]2 years ago

6 0

Answer:

No solutions

Step-by-step explanation:

Let's solve your system by elimination.

10x − 9y = −10

20x − 18y = −28

Multiply the first equation by -2, and multiply the second equation by 1.

−2(10x − 9y = −10)

1(20x − 18y = −28)

Becomes:

−20x + 18y = 20

20x − 18y = −28

Add these equations to eliminate x:

0 = −8

You might be interested in

87,627 ÷ 931<br>please tell me the answer.

Ahat [919]

It's an ugly decimal but it's 94.12

6 0

3 years ago

Read 2 more answers

Solve x^2-4x=0 solving quadratic equations

BARSIC [14]

Answer:

$x= 0\\x =4$

Step-by-step explanation:

We have the expression:

$x ^ 2-4x = 0$

To solve this equation we must factor:

1.- Take common factor x.

$x(x-4) = 0$

2.- Evaluate the expressions to know when they are equal to 0.

$x = 0$ or $x-4 = 0$

$x = 0$ or $x = 4$

3.- The solutions are:

$x = 0\\x = 4$

5 0

3 years ago

Help me because i need help

kobusy [5.1K]

Answer: c

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

What equation represents the proportional relationship displayed in the table?

Elodia [21]

CHECK:

for x = 2 → y = 5(2) = 10 <em>CORRECT</em>

for x = 4 → y = 5(4) = 20 <em>CORRECT</em>

for x = 6 → y = 5(6) = 30 <em>CORRECT</em>

for x = 8 → y = 5(8) = 40 <em>CORRECT</em>

4 0

4 years ago

18 greater than or equal to-3 x

DENIUS [597]

Answer:

it will depend on what the x value is, 18 would be greater if x is -5 or more, it will be equal if x equals -6.

3 0

4 years ago

Read 2 more answers