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1. A house has an electricity bill of 120 euros a month. 47 % of this goes into electrical heating. The tenant decides to reduce the indoor temperature from 23 °C to 19 °C. One degree Celcius reduction in indoor temperature makes a 5 % difference in the electrical heating bills. How much are the heating electricity expenses for 10 months if she keeps the temperature at this level for these 10 months?

1. A house has an electricity bill of 120 euros a month. 47 % of this goes into electrical heating. The tenant decides to reduce the indoor temperature from 23 °C to 19 °C. One degree Celcius reduction in indoor temperature makes a 5 % difference in the electrical heating bills. How much are the heating electricity expenses for 10 months if she keeps the temperature at this level for these 10 months?

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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1. A house has an electricity bill of 120 euros a month. 47 % of this goes into electrical heating. The tenant decides to reduce the indoor temperature from 23 °C to 19 °C. One degree Celcius reduction in indoor temperature makes a 5 % difference in the electrical heating bills. How much are the heating electricity expenses for 10 months if she keeps the temperature at this level for these 10 months?
Transcribed Image Text:1. A house has an electricity bill of 120 euros a month. 47 % of this goes into electrical heating. The tenant decides to reduce the indoor temperature from 23 °C to 19 °C. One degree Celcius reduction in indoor temperature makes a 5 % difference in the electrical heating bills. How much are the heating electricity expenses for 10 months if she keeps the temperature at this level for these 10 months?
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