Tuesday

April 21, 2015

April 21, 2015

Posted by **Carmen** on Friday, August 15, 2014 at 5:53pm.

- Math -
**Bosnian**, Friday, August 15, 2014 at 7:34pma = number of ostriches

b = number of llamas

Numbers of heads = 47

That mean numbers of animals = 47

Numbers of animals = number of ostriches + number of llamas

a + b = 47

Numbers of legs = 122

Ostriches have two legs and llamas have four legs so :

2a + 4 b = 122

Now you must solve system of two equations :

a + b = 47

2a + 4 b = 122

The solutions are :

a = 33

b = 14

There are 33 ostriches and 14 llamas.

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