winterforever
Bob/PKB
Top contributors in Uncategorized category
Unanswered Questions
Cách soi cầu xsmb win2888 thắng lớn
Answers: 0
Views: 7
Rating: 0
69vnhealth
Answers: 0
Views: 3
Rating: 0
69vnhealth
Answers: 0
Views: 4
Rating: 0
VIC 79
Answers: 0
Views: 6
Rating: 0
Hà Trọng
Answers: 0
Views: 7
Rating: 0
cf789pro
Answers: 0
Views: 8
Rating: 0
Nhà cái BONGVIP
Answers: 0
Views: 7
Rating: 0
Đức Vinh
> More questions...
Answers: 0
Views: 12
Rating: 0
x is the number of zebras y is the number of ostriches
4x + 2y = 120
2x + 2y = 86 (double the number of heads) Now subtract
2x = 34
x = 17 (this is the number of zebra heads)
4x = 68 (this is the number of zebra legs)
y = 26 (this is the number of ostrich heads)
2y = 52 (this is the number of ostrich legs)
17 + 26 = 43 heads 68 + 52 = 120 legs
THANK MY SISTER FOR THE SOLUTION.