All categories

3 years ago

Pls give me the answer i'll give you a brainliest :)

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

8 0

Answer:

x = 6

y = -1

Step-by-step explanation:

We have to use substitution for the system of equations.

x = -6y

4x + 10y = 14

Because we know that [x = -6y], we can get rid of the x value by substituting y into the equation, [4x + 10y = 14].

4 x -6y + 10y = 14

Simplify.

-24y + 10y = 14

-14y = 14

Divide both sides by -14.

-14y = 14

÷-14 ÷-14

y = -1

From y, we can also find out the x value, as [x = -6y].

We now know that y = -1.

Therefore, we have to substitute again.

x = -6y

y = -1

x = -6 x -1

x = 6

Hence, x = 6 and y = -1.

Sorry it took so long to answer.

You might be interested in

1/3+1/3x+8/3=-1/3(6x+11)

ivann1987 [24]

Answer:

x=-20/7 or -2.857

Step-by-step explanation:

bring like terms together in each side of the = side

then work the out

3 0

3 years ago

Find two consecutive integers such that 3 times larger exceeds twice the smaller by 34

Katen [24]

Answer:

x - a smaller number

(x+1) - a larger number

3(x+1) - 2x = 34

3x + 3 - 2x = 34

x= 31

(x+1) = 32

Step-by-step explanation:

7 0

3 years ago

Sgt. Merritt has bought a house now that his tour of duty is up. He wants to stain the wood floors of the living room, which mea

Lunna [17]

It costs $ 30240 to stain floor of the entire room

<em><u>Solution:</u></em>

<em><u>Given that,</u></em>

Sgt. Merritt has bought a house now that his tour of duty is up

He wants to stain the wood floors of the living room, which measure 18 x 14

Therefore,

length = 18 yards

Width = 14 yards

$Area = length \times width\\\\Area = 18 \times 14\\\\Area = 252$

Thus area of wood floors is 252 square yards

<h3><u>How much will it cost to stain floor of the entire room?</u></h3>

The stain costs $120 per square yard

$Cost = 252 \times 120\\\\Cost = 30240$

Thus it costs $ 30240 to stain floor of the entire room

3 0

3 years ago

Pam draws three scalene triangles. In each figure, she measures each angle, as shown.

Ganezh [65]

Answer:

the answer is c.

Step-by-step explanation:

there's no explanation

7 0

3 years ago

john is 2 years younger than his sister, annie. Last year, John was half Annie's age. How old are john and Annie now?

sladkih [1.3K]

Answer:

John is 3 and Annie is 5 because to be half of someone's age while being to years younger it would have to be 2 and 4 - but then a year passed and so the are now 3 and 5.

Step-by-step explanation:

7 0

3 years ago