Pirates
c is the number of canaries a pirate has and p is the number of parrots. There are three times the number of canaries as parrots.
c=3p
A square has side length s. The perimeter of the square is half the area.
4s=s2/2
There are two more puppies in a litter than kittens (use p for puppies and k for kittens).
p=k+2
Gillian the pirate has exactly one more ship in her fleet than twice the number of ships in Jack the pirate's fleet. Use g for Gillian's ships and j for Jack's ships.
g=2j+1
A rectangle has length a and width b. If the rectangle one inch shorter (in length) three times as wide, then it would be a square.
a-1=3b
A farm has chickens and rabbits. Between them they have 100 legs. Use c for the number of chickens, NOT chicken legs, and r for the number of rabbits.
2c+4r=100
The square of the number of holes in a leaky ship is three less than half the number of desert islands on the horizon. Use h for holes and d for desert islands.
h^2=d/2-3
A triangle has side lengths a, b and c with a>b>c. The sum of its two shorter sides is two more than its longest side.
a+b=c+2
The square of four more than the number of dinosaurs in a forest is seven less than the number of living descendants of the Loch Ness monster. Use D for dinosaurs and L for the monster's descendants.
(D+4)2=L-7 OR L=D2+8D+23
A pirate stacks barrels of rum in a pyramid. There are b barrels in the bottom layer. Going up, every layer has two fewer barrels than the layer below it. Counting from the bottom, the eighth layer has half the number of barrels as the bottom layer.
b-7=b/2 OR b=14
We can split a square into four smaller squares. We can then split each of the smaller squares into four smaller squares and then each of the smaller squares we get into four even smaller squares. How many small squares are there in total if we do this process 10 times?
4^10 OR 4*4*4*4*4*4*4*4*4*4
r is the number of rabbits currently. Every generation, the number of rabbits doubles. Three generations from now, there will be 140 more rabbits than there are now
8r=r+140, OR r=20