Make a proportion.
[tex] \frac{planet A}{planet B} [/tex] ⇒ [tex] \frac{100}{3} [/tex] = [tex] \frac{2200}{x} [/tex]
Solve for x to find the weight of the elephant on planet B. Cross multiply; (100)(x) and (3)(2200).
You now have:
100x = 6600.
Divide both sides by 100.
x = 66
The elephant would weigh 66 pounds on planet B.
