Respuesta :

nonsibi

Let...

x-represent (20%) of the number of goat

y-represent (20%) of the number of cows

Equations:

5x+5y=40

x+2y=11

Solve by elimination.

 5x+5y=40

-(5x+10y=55)

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

-5y=-15

y=3

x+2(3)=11

x=5

The ratio of goats left to cows left is 20% goats:40 % cows.

That will be 5:3(2) = 5:6 (already in reduced form).

answer: 5:6

kana2004

Answer:

5 : 6

Step-by-step explanation:

Goats + Cows = 40

(Goats + Cows) - 29 = 40 - 29 = 11

Let's say Goats are x

And Cows are y

x+y = 40

(x+y) - 29= 11

4x : x 4x + x= 5x

3y : 2y 3y + 2y = 5x

4x+3y= 29

x+ 2y= 11

x= 11 - 2y

Find y with the formulas above.

4 ( 11 - 2y) +3y =29

44 - 8y +3y= 29

44 - 5y= 29

-5y= 29 - 44

-5y = -15

y= 3

x +2y= 11

(add the y value in the equation)

x + (2 × 3) = 11

x + 6= 11

x= 11 - 6

x= 5

Goats and Cows left

x : 2y

= 5 : 3 ×2

= 5 : 6

Answer= 5 : 6

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