Respuesta :

Answer:

The copper percentage = 64%

Step-by-step explanation:

Given

  • Nickle quantity = 9 grams of nickel
  • Copper quantity = 16 grams of nickel
  • Total quantity = 25 grams

The percentage of copper metal can be determined using the formula

Copper percentage = [Copper quantity / Total quantity] × 100

                                  = [16 / 25] × 100

                                   = 0.64 × 100

                                   = 64%

Therefore, the copper percentage = 64%