3 years ago

6x-3y=12 5x-5y=10 using substitution and elimination

Mathematics

1 answer:

Vladimir79 [104]3 years ago

4 0

Answer:

X = 0, Y = -2

Step-by-step explanation:

5(2x + 6y = -12)

2(5x - 5y = 10)

10x + 30y = -60

10x - 10y = 20

40y = -80

y = -2

x = (10 + (-2)5) / 5

x = 0

You might be interested in

10 over 15 in simplest form

77julia77 [94]

The answer is 2/3

10 / 5 = 2
15 / 5 = 3
= 2/3

7 0

2 years ago

Read 2 more answers

What are the steps to 6023 x 854

solniwko [45]

You just multiply them together

6 0

3 years ago

Read 2 more answers

18. Given points A(1,5), B(-2,-1), C(1,1).<br>and D(3,5). what type of lines are AB<br>and CD?

Lelechka [254]

Answer:

The line segments are parallel.

Step-by-step explanation:

First, I never have graph paper when it is needed so I suggest Geogebra.com.

Now slope is found by rise over run so I took the points on the graph and counted where they intersected with any other points on the line. AB was 2/1 which means 2. I did the same for the other line segment and found 2/1 : 2. so both of the slopes are the same so you have parallel lines.

4 0

3 years ago

Simplify the expression: In(e^5x)

Katena32 [7]

$ln(e^{5x})=5xlne=5x\\--------------------\\Use:\\log_ab^c=c\times log_ab\\\\log_aa=1$