Liahbean6398 Liahbean6398
  • 16-03-2021
  • Mathematics
contestada

3. A penny is made by combining 0.1 g of a copper alloy that costs $5.50 per kilogram (1000 grams) with

a zinc alloy that costs $1.50 per kilogram. How many grams of the zinc alloy should be used to make

pennies that cost $2 per kilogram?

Respuesta :

satashinakumoto satashinakumoto
  • 16-03-2021
.0001*5.5 + 1.5*x = 2
x=1.33 kg
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