At the veterinarian's office, terri learned that her dog weighed 4 times as much as her cat. Together the pets weighed 40lbs. how much did The dog weigh

5x = 40 (if x represents the cat's weight, and 4x represents the dog's)

40/5 = 8

so the cat weighs eight pounds.

8 x 4 = 32

the dog weights thirty two pounds.

since 32 + 8 = 40, it's correct!

32lbs. You take 4 and multiply it by 8 which gives you 32, the dog weighs 32lbs, then you have 8 left over, the cat weighs 8lbs.