Question

A herd of dinosaurs made paintings in the sand with their claws.

Answer 1

baby Dino = 15 paintings
Adult Dino = 7 paintings
Entire herd = 208 paintings

//Defining of Variables:
A = no. Of Adult
B = no. Of Baby

This is a simultaneous question so we’ll have to make up some equations.

3B = A —— (1)
This means there is 3x as many baby Dino as adult Dino

15B + 7A = 208 —— (2)
This means 15 paintings being painted by B number of babies + 7 paintings being painted by A number of Adults is 208 paintings.

Those are the equations we set.
Since we know A = 3B,

We can substitute A = 3B into (2).
As such:

15B + 7A = 208
15B + 7(3B) = 208
15B + 21B = 208
36B = 208.

We did that so that we only have 1 unknown variable so that we can calculate what is the value of a unknown variable, which in this case, is B.
If we furthur solve that equation above,

36B = 208
B = 5.777777777 ????

The reason why I was left with 5.77777777 amount of baby dinosaurs is because I didn’t know the value of the variables correctly as you didn’t state it clearly.

However, I’ve done the concept behind this question and I hope it helps you :)

If you would like me to solve it, could you please give me the values of the variables clearly?

Thanks, and have a good day ahead!