Question

Paula has a dog that weighs 3 times as much as Carla's. The total weight of the dogs is 48 lb how much does paula dog weigh

Answer 1

Paula's Dog = 3 * Carla's Dog

A) PD + CD = 48

B) PD - 3 * CD = 0

Multiplying A) by -1

A) -PD -CD = -48 then adding to B)

B) PD -3*CD = 0

-4 * CD = -48

Carla's dog weighs 12 pounds

Paula's dog weighs 36 pounds

Explanation: