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A factory has m tons of coal and plans to use n tons of coal every day. After the technical reform, 2 tons of coal can be saved every day, and the number of days that can be used more than the original plan is?
The original plan can take M △ n days
Now it uses n-2 tons of coal every day
Now it can be used for M (n-2) days
M △ n (n-2) - M △ n, if you want to divide it, it is 2m / (n & # 178; - 2n)
Therefore, it can take 2m / (n & # 178; - 2n) more days than the original plan
Happy learning o (∩)_ ∩)O~~
A factory has m tons of coal, originally planned to use a ton of coal every day, now save 5 tons of coal every day, then it can burn more than planned____ day
m/(a-5)-m/a
=m*(a-a+5)/(a²-5a)
=5m/(a²-5a)
A factory has m tons of coal, originally planned to use a ton of coal every day, now save 5 tons of coal every day, then it can burn more than planned_ 5m/(a²-5a)___ day
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