MATHEMATICS COLLEGE

Solve system by Substitution
method, provide steps.
y = 8x + 12
3.x – 3y = 6

Answers

Answer 1
Answer:

Step-by-step explanation:

y = 8x + 12 _____(1)

3x - 3y = 6 ______(2)

Substituting the.the expression for y in eqn (1)

into eqn (2).

3x - 3(8x + 12) = 6

3x - 24x - 36 = 6

-21x = 42

x = -2.

y = 8(-2) + 12 = -4.

hence x = -2 and y = -4.
Answer 2
Answer:

Answer:

54

Step-by-step explanation:

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If the statement shown is rewritten as a conditional statement in if-then form, which best describes the conclusion? When a number is divisible by 9, the number is divisible by 3.

20-3+12/6x2=N
Helpppppp

Answers

Answer:

N=21

Step-by-step explanation:

20-3+12/6x2=N

20-3+2x2=N

20-3+4=N

21=N

N=21
20 - 3 + 12/6 x 2 = N
20 - 3 + 2 x 2 = N
20 - 3 + 4 = N
20 + 1 = N
21 = N

N = 21

PLEASE HELP I MISSED A WHOLE WEEK AND IM SO CONFUSED WHAT THIS IS

Answers

The value of x is given by the pythagoras theorem
X^2 = 17^2 - 15^2
X^2 = 289-225
X^2 = 64
X = sqrt64
X= 8cm

The temperature in a town is during the day and at night. Find the difference in the temperatures.The difference in temperature is
F.

Answers

Answer:

what are the numbers my g

Step-by-step explanation:

!!HELP!!A stage designer paid $4 per square foot for flooring to be used
in a square room. If the designer spent $600 on the flooring, about how long is a
side of the room? Round to the nearest foot.

• How is the area of a square related to its side length?

• How can you estimate the length of a side of a square?

Answers

The area of a square relates to its side length as Area = Side Length × Side Length. To estimate a side length, knowing $4/sq ft cost and $600 spent, Side Length ≈ 12 feet.

The area of a square is related to its side length by the formula:

Area = Side Length × Side Length

or Area = Side Length²

To estimate the length of a side of a square,

use the given information that the designer paid $4 per square foot for flooring and spent $600 on the flooring.

The cost of the flooring is directly proportional to its area, which is determined by the square of the side length.

Let's set up an equation using the cost and area:

Cost of flooring = Cost per square foot × Area

$600 = $4/sq ft × Side Length²

Solving for Side Length²

Side Length² = $600 / $4/sq ft

Side Length² = 150 sq ft

Taking the square root of both sides to find the side length:

Side Length ≈ √150

Side Length ≈ 12.25 feet

Rounded to the nearest foot, the side length of the room is approximately 12 feet.

Therefore, the estimated length of a side of the room is about 12 feet.

learn more about length here

brainly.com/question/32060888

#SPJ3

Answer:

$150

Step-by-step explanation:

600 divided by 4

Please help! ASAP correct answer will get brainliest!!!

Answers

Answer:

It would be Congruent, ASA.

Step-by-step explanation:

You can see there is a line on the side of both triangles meaning they're the same side and a circle in the corner of both triangles, meaning they're the same angle.

Answer:

I can confirm that the answer above me is right

Step-by-step explanation:

2. Mrs. Gardner is buying a television for $675.50 with a sales tax rate of 7%,what is the sales tax amount? What is her total?

Sales Tax:
Total:

Answers

9514 1404 393

Answer:

  • $47.29 tax
  • $722.79 total

Step-by-step explanation:

The sales tax is ...

  7% × $675.50 = 0.07 × $675.50 = $47.285 ≈ $47.29

The total purchase price is ..

  $675.50 +47.29 = $722.79
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