A puppy's weight increases by 15% each week for the first 6 months. The puppy currently weighs 3.7 pounds. Which expression will not calculate how much the puppy will weigh in 1 week?
A 3.7(0.15)
B 3.7(1.15)
C 3.7 + 3.7(0.15)
D 3.7 + 0.555
Answers
Given : A puppy's weight increases by 15% each week for the first 6 months.
The puppy currently weighs 3.7 pounds.
To Find : Which expression will not calculate how much the puppy will weigh in 1 week
A 3.7(0.15)
B 3.7(1.15)
C 3.7 + 3.7(0.15)
D 3.7 + 0.555
Solution:
Current Weight = 3.7
Weight Gain = (15/100)3.7
= (0.15)(3.7)
= (3.7)(0.15)
Puppy Weight in 1 Week = 3.7 + (3.7)(0.15)
3.7 ( 1 + 0.15) = 3.7 (1.15)
3.7 + (3.7)(0.15) = 3.7 + 0.555
3.7(0.15) is Weight gain not weight after 1 Week
Hence 3.7(0.15) expression will not calculate how much the puppy will weigh in 1 week
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