All categories

2 years ago

Solve the system of equations -30 + 7y = -18 and 4x – 4y = 8 by combining the equations.

Mathematics

1 answer:

mariarad [96]2 years ago

6 0

The answer is (4/23,-42/23).
good luck!

You might be interested in

John is solving x^2 + 4x + 8=0 by completing the square. Which step would be part of John's solution.?

SOVA2 [1]

Answer:

$(x + 2) ^{2} = - 8$

Step-by-step explanation:

${x}^{2} + 4x + 8 = 0 \\ {x }^{2} + 4x = - 8 \\ {x}^{2} + 4x + 4 = - 8 + 4 \\ ( x + 2)^{2} = - 4$

3 0

2 years ago

I need help with help on the one with the pink circle

podryga [215]

Answer:

15°

Step-by-step explanation:

The line in the middle of the triangle divides it into two triangles. These two triangles are equal. You can see this because the given angle (90°) is equal for both sides, and the bottom sides (23) are also equal to each other.

Since the triangles are equal, this means that the given angle of 75° also applies to the other side. The total degrees a triangle can have is 180°. Use the given angles to solve for the unknown angle.

75° + 90° + x = 180°

165° + x = 180°

x = 15°

The angle measure will be 15°.

4 0

3 years ago

Which statement best describes the pattern of association between the variables x and y shown in the scatter plot

Kryger [21]

Answer:

if i were to answer...i would go for B, but dont use my answer if u disapprove cuz I, myself, isnt sure

Step-by-step explanation:

8 0

3 years ago

The measure of angle J is 56.9°. Find the measure of the complement and supplement of angle

Georgia [21]

Answer:

Got morning

Step-by-step explanation:

Hatice in Ankara iş for ndsngeldi dfuhtvwy seni sevdim mi tam severim merhaba hocam nasılsınız nasılsın nasılsın bir yöntem olup olmadığını düşünelim sırasıyla görüşmek için randevu talep ediyoruz merhaba canım benim çok sevdiğim gerçeği var bide bu var

5 0

2 years ago

How do you simplify an Algebraic expression ?

NeTakaya

Answer:

You can solve one by... it's hard to explain So i'll just show you

Step-by-step explanation:

Here's an example,

2x+7=4+5x

First you subtract the variables on both sides (lower variable)

2x+7=4+5x

-2x -2x

Which will leave you

7=4+3x

The subtract the whole number on each side (lower number)

7=4+3x

-4 -4

Which will leave you

3=+3x

Then you divide on both sides

3/3 3/3

which should leave you

x=1

5 0

2 years ago