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GaryK [48]
3 years ago
15

4x-9y=9

Mathematics
1 answer:
Alexxandr [17]3 years ago
5 0
Multiply both sides of the second equation by 4. That will give you -4x in the second equation which when added to 4x of the first equation will eliminate x.

Second equation:
-x + 3y = 6

Multiply the second equation by 4 on both sides:
-4x + 12y = 26
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what is the area of this book? what is the volume of this book? (height is 8, length is 6, and width is 1)
mamaluj [8]
<span>A=2(wl+hl+hw)=2·(8·6+1·6+1·8)=124</span>
8 0
3 years ago
Read 2 more answers
Ana starts eating lunch at 12:15 pm she finishes eating lunch 49 mins later what lock shows the time that Ana finishes eating lu
Oduvanchick [21]

Answer:

What kind of problem? Multiplication? Division? What?

Step-by-step explanation:

3 0
3 years ago
-7x-4=13 how do u show the work and how do u check it
ioda

Answer:

Step-by-step explanation:add 4 to the side that has "13" then you will get "17" then divided -7 from x and "17"and your answer is x=idk

3 0
4 years ago
How many solutions does this set of equations have 7x − 7y = -6,13x − 9y = 16
QveST [7]

Well they each have 3 solutions

The solutions to 7x-7y=-6 are:

  1. Slope=1
  2. X-intercept= - 6/7=-0.85714
  3. Y-intercept= 6/7= 0.85714

The answers to 13x-9y=16 are:

  1. Slope=2.889/2.000=1.444
  2. X-intercept=16/13=1.23077
  3. Y-intercept=16/-9=1.77778
  4. Hope i could help you
8 0
3 years ago
Fathers age is twice his daughter age but 16 years ago fathers age was 4 times his daughters age . Calculate their ages
zvonat [6]

Answer:

Father's age = 48

Daughter's age = 24

Step-by-step explanation:

Let x be father's age and y be daughter's age.

1st equation:

x = 2y

2nd equation:

(x - 16) = 4(y - 16)

Replacing value of x from 1st equation,

(2y - 16) = 4(y - 16)

2y - 16 = 4y - 64

4y - 2y = 64 - 16

2y = 48

y = 48/2

y = 24

And,

x = 2y

x = 2 x 24

x = 48

8x - x = 64 - 16

7x = 48

4 0
3 years ago
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