4 years ago

Use elimination to solve x + 4y = -8 and x - 4y = -8

Mathematics

2 answers:

GuDViN [60]4 years ago

8 0

Add them to get 2x=-16, x=-8, substitute in either to get 4y=0, y=0.

Naya [18.7K]4 years ago

8 0

Answer:

x=-8

y=0

Step-by-step explanation:

x+4y=-8

x-4y=-8

2x=-16

x=-8

-8+4y=-8

+8 +8

4y=0

y=0

You might be interested in

Please help will give brainliest it’s for a test Round 29.20 to 30 Show work please

djverab [1.8K]

Answer:

you cant round that to 30

Step-by-step explanation

29.20

29.2 2 is less than 5

so you cant round you can only round if the .tens place is 5 or more

4 0

3 years ago

On a recent homework assignment, Eli needed to solve the equation

tamaranim1 [39]

Answer:

A - the real answer is 7

Step-by-step explanation:

g²=49 (square root 49 to get 7)

B) not sure - possibly wrote the negative sign as a mistake

7 0

4 years ago

If you subtract 38431 from a number, you are left with 14391.Find the number

Yakvenalex [24]

Answer:

52822

Step-by-step explanation:

38431+14391= 52822

Hope this helps! :)

5 0

3 years ago

Read 2 more answers

Martin has 5/6 of a pizza. Liam has 4 times as much pizza as Martin.

Novosadov [1.4K]

Answer:

Liam has 3 whole pizza along with 1/3 of a pizza.

In decimal, Liam has 3.33 of Pizza.

Step-by-step explanation:

Given

Quantity of pizza with Martin = 5/6 of a pizza

Pizza with Liam = 4*Quantity of pizza with Martin

Pizza with Liam = 4*5/6 of a pizza

Pizza with Liam = 10/3 of a pizza = 3 1/3 of pizza.

Thus, Liam has 3 whole pizza along with 1/3 of a pizza.

In decimal Liam has 3.33 of Pizza.

7 0

4 years ago

Identify the following polygons with the most specific name. Please she jpg for shapes and choices.

ExtremeBDS [4]

Answer:

isosceles trapezoid

Step-by-step explanation:

honestly not 100% sure but it seems the most specific

5 0

3 years ago