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Julli [10]
3 years ago
15

PLEASE HELP FAST! WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER!

Mathematics
1 answer:
S_A_V [24]3 years ago
5 0

Answer:

8y=8 or 4y=-4

Step-by-step explanation:

1.)-2(x+3y=-1)

   2x+2y=6

2.)-2x+6y=2

     2x+2y=6

3.)6y=2  

   2y+6

4.)8y=8 (If adding) or 4y=-4 (If subtracting)

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PLEASE HELP ! Suppose another company offers a special
kolezko [41]

The special is cheaper than Bella's price. Then the correct option is B.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

Suppose another company offers a special banquet price of $4,000 for 150 people.

Then the special is cheaper than Bella's price.

Then the correct option is B.

More about the linear system link is given below.

brainly.com/question/20379472

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5 0
1 year ago
The areas of two similar triangles are 72dm2 and 50dm2. The sum of their perimeters is 226dm. What is the perimeter of each of t
astraxan [27]

Answer:

Hence, the perimeter of the triangles are:

P=123.2727 dm

P'=102.7272 dm

Step-by-step explanation:

In two similar triangles:

The ratio of the areas of two triangle is equal to the square of their perimeters.

Let A and A' represents the area of two triangles and P and P' represents their perimeter.

Then they are related as:

\dfrac{A}{A'}=\dfrac{P^2}{P'^2}

We are given:

A=72 dm^2  , A'=50 dm^2

and P+P'=226 dm.-----------(1)

i.e. \dfrac{72}{50}=\dfrac{P^2}{P'^2}\\\\\dfrac{36}{25}=\dfrac{P^2}{P'^2}

on taking square root on both the side we get:

\dfrac{P}{P'}=\dfrac{6}{5}\\\\P=\dfrac{6}{5}P'

Now putting the value of P in equation (1) we obtain:

\dfrac{6}{5}P'+P'=226\\\\\dfrac{6P'+5\times P'}{5}=226\\\\\dfrac{6P'+5P'}{5}=226\\\\11P'=226\times 5\\\\11P'=1130\\\\P'=\dfrac{1130}{11}=102.7272

Hence,

P=226-102.7272=123.2727

Hence, the perimeter of the triangles are:

P=123.2727 dm

P'=102.7272 dm

6 0
3 years ago
Hatah and his 3 friends are each running an equal part of a la mile race.
Lana71 [14]

Answer:3.5 miles

Step-by-step explanation:

8 0
3 years ago
Simplify the expression:<br><br> m - 1/6 - 4m + 5/6
Oduvanchick [21]

Answer:

-3m+2/3.     2/3 is a fraction

Step-by-step explanation:

8 0
3 years ago
Solve with quadratic formula.<br> 4k^2- 20 = k
zvonat [6]

Answer: k= \frac{1+\sqrt{321} }{8} , \frac{1-\sqrt{321} }{8}

Step-by-step explanation:

Move all terms to one side.

4^{2} -20-k=0

Use the Quadratic Formula.

k=\frac{1+\sqrt{321} }{8} , k=\frac{1-\sqrt{321} }{8}

5 0
2 years ago
Read 2 more answers
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