Someone please help I’m completely lost

70

Step-by-step explanation:

cows:sheep=6:5

sheep:pigs=2:1

cows:sheep:pigs=12:10:5

27x=189

x=7

sheep=10*7

sheep=70

There are 84 cattle, 70 sheep and 35 pigs

Step-by-step explanation:

We're told three things:

Starting off, let's express the the last point as an equation:

c + s + p = 189

To solve this, we need to eliminate variables by substituting others in their place.  Let's start with cattle to sheep.  Using the 6:5 ratio of cattle to sheep:

c / 6 = s / 5

s = 5c / 6

Let's update our equation to match that

c + 5c / 6 + p = 189

Now to eliminate pigs. We know that there is one pig for every two sheep.  So:

p = s / 2

We can substitute our relationship with cattle to sheep in to that to express p as a function of c:

p = (5c / 6) / 2

p = 5c / 12

Now we can substitute that into the original equation

c + 5c / 6 + 5c / 12 = 189

Now we can solve for c:

c + 5c / 6 + 5c / 12 = 189

12c / 12 + 10c / 12 + 5c / 12 = 189

(12 + 10 + 5)c / 12 = 189

27c / 12 = 189

9c / 4 = 189

9c = 756

c = 84

So there are 84 cattle.  We can use the original given relationships to find the rest.

s = 5 × 84 / 6

s = 5 × 14

s = 70

p = s / 2

p = 70 / 2

p = 35

So there are 84 cattle, 70 sheep and 35 pigs

Let's double check:

84 + 70 + 35 = 189  - correct

70 / 2 = 35 - correct

5 * 84 / 6 = 70 - correct

So the answer is correct.

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer