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GarryVolchara [31]
4 years ago
10

X=2y-1 3x+4y=11 Need help solving

Mathematics
1 answer:
tigry1 [53]4 years ago
6 0

Answer: (-1/5, 2/5)


Step-by-step explanation:

See the photo for explanation and work.


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Select the correct answer from the drop-down menu.
saul85 [17]

For this case we have the following factorized expression:

(2y-9) (2y-9)

Applying distributive property we have:

(2y) (2y) - (2y) (9) - (9) (2y) + (9) (9) =\\4y ^ 2-18y-18y + 81 =

We add similar terms taking into account that: Equal signs are added and the same sign is placed.

4y ^ 2-36y + 81

ANswer:

4y ^ 2-36y + 81

3 0
3 years ago
Write the equation of the line given the points (2,0) and (3.-1)
Juli2301 [7.4K]

Answer:

y = -1x + 2

Step-by-step explanation:

We need to find y = mx + b

Use the following equation

\frac{y_2-y_1}{x_2-x_1}

Plug in the values

\frac{-1-0}{3-2}  = \frac{-1}{1} = -1

We have found the slope(m) which is -1

We have to find y-int b

Plug in any given x,y into the slope formula

-1 = -1(3) + b

-1 = -3 + b

2 = b

At last the formula is

y = -1x + 2

7 0
3 years ago
ABCD is a rhombus, where m∠AED = 5x – 10. Use the properties of a rhombus to determine the value of x.
EastWind [94]

Answer:

Option b

Step-by-step explanation:

According to the property of rhombus at Centre it have 90°

So,

(5x - 10) {}^{o}  = 90 {}^{o}

5x = 90 + 10

5x = 100

x =  \frac{100}{5}

x = 20

Hope this helps u ^_^

4 0
3 years ago
A number is 3 1/3 greater than another. If the sum of the numbers are doubled the answer would be 19 1/2
Delicious77 [7]

Answer:

smaller number = 3 5/24

larger number =  6 13/24

Step-by-step explanation:

let the larger number = x

smaller number = y

x - y = 3 1/3 equation 1

2(x +y) = 191/2 equation 2

divide equation 2 through by 2

x + y = 9 3/4  equation 3

subtract equation 1 from 3

2y = 6 5/12

y = 77/12 x 1/2 = 3 5/24

substitute for y in equation 1

x - 3 5/24 = 31/3

x = 3 1/3 + 3 5/24

x = 6 13/24

5 0
3 years ago
Read 2 more answers
india made a scale drawing of her bedroom using a scale of 1 cm=6 inches. what is the height of the drawing of her bookcase if i
Ksivusya [100]

Answer:

4 cm

Step-by-step explanation:

If 6 inches = 1 cm, and 24 inches divided 6 inches = 4, then it would be 4 cm.

6 0
3 years ago
Read 2 more answers
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