Question

Answer $
When Valentina was 10 years old, her mass was 32 kg.
Two years later her mass had increased by 45%.
Calculate Valentina's mass when she was 12 years old.

Answer 1

Answer:

46.4kg

Step-by-step explanation:

Mass of Valentina when she was 10 years = 32kg

Her mass percent increased in 2 years = 45%

Her mass increased in 2 years = 32 * 45/100 = 14.4kg

Her mass when she was 12 years = 32 + 14.4 = 46.4kg