One-humped 39761

There are one-humped and two-humped camels in the caravan going through the desert. The guide counted 28 heads and 45 humps. How many humpback camels are in the caravan?

Correct answer:

j =  11

Step-by-step explanation:


d+j=28
2d+1j=45

d+j=28
2·d+1·j=45

d+j = 28
2d+j = 45

Pivot: Row 1 ↔ Row 2
2d+j = 45
d+j = 28

Row 2 - 1/2 · Row 1 → Row 2
2d+j = 45
0.5j = 5.5


j = 5.5/0.5 = 11
d = 45-j/2 = 45-11/2 = 17

d = 17
j = 11

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a system of equations and looking for calculator system of linear equations?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: