A dog's weight increased by 50% in 3 years. By the end of 3 years, the dog weighed 45 pounds. How much did the dog weigh 3 years ago? A. 45 pounds B. 60 pounds C. 90 pounds D. 30 pounds

The answer to your question is the letter D. 30 pounds

Step-by-step explanation:

Data

increase = 50%

final weighed = 45 pounds

Process

1.- Use proportions to solve this problem. 45 pounds will be 150% (the initial 100% plus an increase of 50%).

                       45 pounds 150%

                          x  pounds  100%

                          x = (100 x 45)/150

                          x = 4500/150

Result

                         x = 30 pounds              

17   x 256=4352

sorry if this is wrong, i'm new.

step-by-step explanation: