79.8% of household rubbish could be recycled
Step-by-step explanation:
The given is:
1. in 2006
, About 6.8 million tonnes of household rubbish is recycled
2. This is 27% of total household rubbish
3. About 20.1 million tonnes of household rubbish could be recycled
We need to find the percentage of household rubbish could be recycled
∵ 6.8 million tonnes of household rubbish is 27% of total household
rubbish
∴ 6.8 million tonnes = 27% of total household rubbish
∴ 6.8 million tonnes = [tex]\frac{27}{100}[/tex] × total household rubbish
∴ 6.8 million tonnes = 0.27 total household rubbish
- Divide both sides by 0.27
∴ The total household rubbish = 25.185 million tonnes
∵ About 20.1 million tonnes of household rubbish could be recycled
∵ The total household rubbish is 25.185 million tonnes
∴ The percentage of 20.1 million tonnes = [tex]\frac{20.1}{25.185}[/tex] × 100%
∴ The percentage of 20.1 million tonnes = 79.8%
79.8% of household rubbish could be recycled
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