SOLUTION: Dorian and Dingo have a petting zoo with 12 animals, and all of them are either sheep or goats. They have twice as many sheep as goats. How many goats do they have?
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Question 142563This question is from textbook a survey of mathematics with applications
: Dorian and Dingo have a petting zoo with 12 animals, and all of them are either sheep or goats. They have twice as many sheep as goats. How many goats do they have?
This question is from textbook a survey of mathematics with applications
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Dorian and Dingo have a petting zoo with 12 animals, and all of them are either sheep or goats. They have twice as many sheep as goats. How many goats do they have?
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Let # of goats be "x"; Let # of sheep by "y"
EQUATIONS:
x + y = 12
y-2x = 0
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Solve by substitution:
y = 2x
x + 2x = 12
3x = 12
x = 4 (# of goats)
y = 8 (# of sheep)
========================
Cheers,
Stan H.
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