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Anettt [7]
3 years ago
11

the cost of old boiler is £775 per year,the new one is £1850 ,the cost of using a new boiler will be 1/5 less than the cost of u

sing the opd boiler. how many years will it take for the savings feom cost of using nthe new boiler to total £1850​
Mathematics
1 answer:
Tanya [424]3 years ago
4 0

Answer:

I think its 12.3 years

Step-by-step explanation:

a fifth of 775 is 155 and 155 x 12.3 = 1850

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90 + 61 + x 17 = 180

168 +x = 180(subtract 168 on both sides)

x= 12 degrees



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