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inessss [21]
3 years ago
6

URGENT WILL MARK BRAINLIEST

Mathematics
2 answers:
DiKsa [7]3 years ago
3 0

Answer:

x=2, y=2

Step-by-step explanation:

3x + y = 8

2x + 4y = 12

Multiply the first equation by -4

-12x -4y = -32

Then add to the second equation

-12x -4y = -32

2x + 4y = 12

------------------------

-10x + 0y = -20

-10x = -20

Divide by -10

-10x/-10 = -20/-10

x =2

Now find y

3x+y = 8

3(2)+y = 8

6+y = 8

y = 8-6

y =2

babymother [125]3 years ago
3 0

Answer:

\huge\boxed{\sf Solution Set = \{(2,2)\}}

Step-by-step explanation:

3x + y = 8 ----------------------(1)

2x + 4y = 12 -------------------(2)

Multiply Eq. (1) by 4

4(3x+y) = 8*4

12x + 4y = 32 -----------------(3)

Subtract Eq. (3) from (2)

2x + 4y - (12x + 4y) = 12 - 32

2x + 4y - 12x - 4y = -20

2x - 12x = -20

-10x = -20

Divide both sides by -10

x = 2

<u>Put x = 2 in Eq. (1)</u>

3(2) + y = 8

6 + y = 8

Subtract 6 to both sides

y = 8 - 6

y = 2

Solution Set = {(x,y)} = {(2,2)}

\rule[225]{225}{2}

Hope this helped!

<h3 /><h3>~AH1807</h3><h3>Peace!</h3>
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Misha Larkins [42]

0.6

6/10 because there is only one number after the decimal.

6/10 - reduce

Divide by 2

6/2= 3

10/2= 5

Answer: 3/5

7 0
3 years ago
Read 2 more answers
Divya wants to rent a car to drive for the weekend. The rental company has a special that allows her to rent it for $200 for the
adelina 88 [10]

Answer:

200 + 0.07m \leq 230

A maximum of \approx 428 miles is the distance what Divya can travel.

Step-by-step explanation:

Given that:

Rent to be paid for the car in the weekend = $200

Charges to be paid per mile = $0.07

Total money available  with Divya = $230

To find:

The inequality as per her limitations and solution to the problem.

Solution:

Let the number of miles for which Divya can drive = m miles

Charges for one mile = $0.07

Charges for m miles = $0.07m

Total charges for renting and m miles = Rental charges + Operational charges

Total charges for renting and m miles = $200 + $0.07m

These are charges must be lesser than equal to the amount of money available with Divya.

Therefore, we can write:

200 + 0.07m \leq 230

Subtracting 200 from both the sides:

0.07m \leq 30

Dividing both sides with 0.07:

m \leq \dfrac{30}{0.07}\\m\leq 428.6

Therefore, a maximum of \approx 428 miles is the distance what Divya can travel.

8 0
3 years ago
SHOW YOUR WORK! Marking the best response with brainliest:) thank u
sdas [7]

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

The length is 3x + 7

The width is 2x + 2

The perimeter is

<h3>2( 3x + 7) + 2( 2x + 2)</h3>

Simplify

6x + 7 + 4x + 4

Group like terms

6x + 4x + 7 + 4

We have the final answer as

<h3>10x + 11</h3>

Hope this helps you

6 0
3 years ago
Solve for x. Leave your answer in simplest radical form
Alexandra [31]

Answer:

x = sqrt(39)

Step-by-step explanation:

Let y = common side of the two triangles.

Upper right triangle:

6^2 + y^2 = 10^2

y^2 = 100 - 36

y^2 = 64

y = 8

Lower left triangle:

5^2 + x^2 = 8^2

x^2 = 64 - 25

x^2 = 39

x = sqrt(39)

6 0
3 years ago
How do you isolate the variable in 1/2p+75=100
hram777 [196]

Answer:p=50

Step-by-step explanation:

8 0
4 years ago
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