human
A herd consists of camels and dromedaries. There are 180 heads and 304 bumps. How many dromedaries are there if camels have two humps each and dromedaries have one hump each?
assistant
Define a variable ** Let x be the number of camels.
How many dromedaries are there? ** Since each animal has one head, the number of dromedaries is 180 - x.
Write an equation ** Each camel has two humps and each dromedary has one hump so in total there are 2x + 180 – x = 304 humps.
How many humps are there? ** x = 304 – 180
How many camels are there? ** x = <<124=124>>124
How many dromedaries are there? ** So, there are 124 camels and 180 – 124 = 56 dromedaries.
#### 56