[25 points] with proportions, i don't understand! 134 out of 205 families in "chimgan" village keep cows, 142 keep sheep and 76 keep goats. 67 families have cows and sheep, 10 have cows and goats, 15 have sheep and goats. there are 34 families who keep all three kinds of pets. a) how many families keep only one kind of pet?
b) how many have no pets at all? hint: use the following diagram.

only keeps-

cows=134-67-34-10=23

sheep=142-67-34-15=26

goats=76-10-34-15=17

no pets=205-23-17-26-67-10-16-34

Step-by-step explanation:

some have one pets some have two or three

total no. of family have cows is 134 then 134 minus by those with more will be no. of family only with cows

cosine

step-by-step explanation:

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation: