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At a zoo there are kangaroos, giraffes, and tigers. In total, there are 22 heads and 72 feet. If the number of giraffes is equal to the number of tigers, how many of each animal is at the zoo?

 May 25, 2021
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x = tigers   and  x = giraffes       22-2x  = kangaroos

 

heads = 22

          

feet =     4x  + 4x   + 2 (22-2x) = 72

                     4x = 28

                        x = giraffes = tigers = 7 each             22-7-7 =   then  8 'roos

 May 25, 2021

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