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3 years ago

2x + 4y = 30 x = y - 6

Mathematics

2 answers:

Nataly [62]3 years ago

7 0

X=1 y=7
hope this helps

Rufina [12.5K]3 years ago

4 0

Answer:

x = 1 , y = 7

Step-by-step explanation:

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What is the midpoint of segment AB if A and B are located a (2,-1) and (8,3)?

Jobisdone [24]

Answer:

(5,1)

Step-by-step explanation:

to fins the midpoint add both x points and divide by 2. then, both y points and divide by 2.

8+2/2 , 3-1/2

10/2 , 2/2

5 , 1

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4 0

4 years ago

(1 ÷ x- 1)+(2÷ x+2)=(3÷2) solve and check for extraneous solutions

Sliva [168]

$\frac{1}{x-1}+ \frac{2}{x+2}= \frac{3}{2}$
$\frac{1(x+2)}{(x-1)(x+2)}+ \frac{2(x-1)}{(x+2)(x-1)}= \frac{3(x-1)(x+2)}{2}$
$\frac{x+2+2(x-1)}{(x-1)(x+2)}= \frac{3(x-1)(x+2)}{2}$
$\frac{x+2+2x-1}{(x-1)(x+2)}= \frac{3(x-1)(x+2)}{2}$
$\frac{3x+1}{(x-1)(x+2)}= \frac{3(x^2+x-2)}{2}$
$\frac{}{(x-1)(x+2)}= \frac{3x^2+3x-6)}{2}$
$\frac{3x+1}{(x^2+x-2)}= \frac{3x^2+3x-6)}{2}$
$\frac{2(3x+1)}{2(x^2+x-2)}= \frac{3x^2+3x-6)(x^2+x-2)}{2(x^2+x-2)}$
$\frac{2(3x+1)}{2(x^2+x-2)}-\frac{3x^2+3x-6)(x^2+x-2)}{2(x^2+x-2)}=0$
$\frac{2(3x+1)-3x^2+3x-6}{2(x^2+x-2)}=0$

this will be continued

5 0

4 years ago

Help me plzz you get 100 points

babymother [125]

Answer:

A. B

B. C and D

Step-by-step explanation:

A: 2/3 * 7/7

7/7= 1 which is larger than 2/3

8 0

3 years ago

Read 2 more answers

The sum of two consecutive integers is 69. Find the two integers.

Bezzdna [24]

69/2 = 24.5
34.5 is the middle of the two integers.
So the two integers would be 34 and 35.
34 + 35 = 69

6 0

4 years ago

Solve by the substitution method. 8x + 9y=56 -9x + y = 26

Nikolay [14]

Answer:

(-2,8)

Step-by-step explanation:

8x + 9y=56

-9x + y = 26

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

-9x + y = 26

+9x = +9x

y = 9x + 26

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

8x + 9(9x+26) = 56 <-- substitute for y from above

8x + 81x + 234 = 56

89x + 234 = 56

- 234 = - 234

89x = - 178

x = -2 <--- we got the x value!!

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

-9x + y = 26

-9 (-2) + y = 26 <-- substitute for x from above

18 + y = 26

- 18 = - 18

y = 8 <-- we got the y value!!

6 0

3 years ago