Amy's puppy gains weight faster
Step-by-step explanation:
We need to compare the weights of David's puppy and Amy's puppy
when age = 1 months
Weight of David's puppy = 8.2 pounds
Weight of Amy's puppy = 139 ounces
Conversion from ounces to pounds:
1 ounce = 0.0625 pounds
139 ounces = 139(0.0625) = 8.6875 pounds
when age = 2 months
Weight of David's puppy = 16.4 pounds
Weight of Amy's puppy = 278 ounces
278 ounces = 278(0.0625) = 17.375 pounds
when age = 3 months
Weight of David's puppy = 24.6
Weight of Amy's puppy = 417 ounces
417 ounces = 417(0.0625) = 26.0625 pounds
Difference in weight in pounds for David:
16.4 - 8.2 = 8.2, 24.6 - 16.4 = 8.2
Difference in weight in pounds for Amy:
17.375 - 8.6875 = 8.6875
26.0625 - 17.375 = 8.6875
From the above, there is an increase of 8.2 pounds for David's puppy and an increase of 8.6875 for Amy's puppy.
Since 8.6875 > 8.2, Amy's puppy gains weight faster