All categories

3 years ago

2x - y = 17 2x + 3y = -19 This is elimination not sublimation and I really need help.

Mathematics

1 answer:

blsea [12.9K]3 years ago

4 0

Answer:

(4,-9) or x=4, y=-9

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Theres also a graph attacthed of the equations intersecting if that helps you. :)

You might be interested in

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B81%20%5Ctimes%208%7D%20" id="TexFormula1" title=" \sqrt{81 \times 8} " alt=" \sqr

laiz [17]

Answer:

Step-by-step explanation:

81 = 9 * 9 = 3 * 3 * 3 *3

8 = 2 * 2 * 2 *2

$\sqrt{81 * 8 } = \sqrt{3*3*3*3*2*2*2}\\\\=3 * 3 * 2 \sqrt{2}\\\\= 18\sqrt{2}$

6 0

3 years ago

What is the slope of a line PARALLEL to the graph?

Contact [7]

(0,-2)(1,1)
slope = (1+2)/(1-0) = 3
parallel lines have same slope

so answer

<span>C) 3

--------------
C (0,2) if SF = 1/2
so C'(0. 1)

answer
</span><span>C) (0, 1) </span>

3 0

3 years ago

You want to see if your dog will respond when you open the front door. After many attempts, you found that the dog barked 75% of

KatRina [158]

The dog barked 6 times

4 0

3 years ago

What does 3e-6 mean on the calculator?

Ostrovityanka [42]

it means 3 and then "e" means is up of the 3so its 3↖-6

3 0

3 years ago

If coal is mined at $35.99 per short ton, how much is the price per kg? Use dimensional analysis to solve. 1 short ton = 907 kg.

cricket20 [7]

The cost of 1kg of coal mined from the ore is $0.0397

Data;

1 ton = $35.99
1kg = ?

To find the cost of 1kg of coal, we can simply and equate 1 ton to its equivalent in ton and the solve.

$1ton = 907kg\\$

let's write this and equate it

1 ton = $35.99

907kg = $35.99

1kg = x

Let's cross multiply both sides and solve for x

$907kg = \$35.99\\1kg = x\\x = \frac{1 * 35.99}{907} \\x = \$0.0397$

The cost of 1kg of coal is $0.0397

Learn more on proportions here;

brainly.com/question/870035

3 0

2 years ago