Many people are trying to reduce their carbon footprint. Amrita’s carbon footprint this year was
85% of last year’s footprint. If her carbon footprint this year is 34 tonnes, what was her carbon
footprint last year?
http://www.jiskha.com/display.cgi?id=1385172028
i think teh answer id 26
To find out Amrita's carbon footprint last year, we need to use the information provided. We know that her carbon footprint this year is 85% of last year's footprint, and this year's footprint is 34 tonnes.
Let's solve this step by step:
Step 1: Calculate the percentage of last year's footprint by subtracting 85% from 100%. This will give us the remaining 15% of her carbon footprint.
100% - 85% = 15%
Step 2: Calculate what 1% of Amrita's carbon footprint last year would be by dividing her carbon footprint this year (34 tonnes) by the remaining 15%.
34 tonnes / 15% = 2.27 tonnes
Step 3: Calculate the carbon footprint for 100% by multiplying the result from Step 2 by 100. This will give us the carbon footprint last year.
2.27 tonnes * 100 = 227 tonnes
Therefore, Amrita's carbon footprint last year was 227 tonnes.