Question

The weight of a number of sheets of papers varies directly as the number of sheets ,if 12 sheets of paper weighs 90grams how many sheets will weigh 3 Kilograms

Answer 1

Resposta:

x = 400 sheets

Explicação passo a passo:

3 Kilograms * 1000 = 3000 g

12 sheets ----> 90 g

x sheets -----> 3000 g

90 * x = 12 * 3000

90x = 36000

x = 36000/90

x = 400 sheets