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The canteen transported a batch of coal. Originally, it was planned to burn 0.5 tons of coal every day for 30 days. Actually, it saved 0.05 tons every day. How many days does this batch of coal actually burn
1. Calculate the total tonnage of the batch
30 * 0.5 = 15 (T)
2. Find out the actual number of tons of coal per day
0.5-0.05 = 0.45 (ton)
3. Find out how many days this batch of coal is actually burned
15 divided by 0.45 is about 33 (days)
A batch of coal is planned to burn 0.2 tons a day, which can be finished in 30 days. In fact, it burns 0.05 tons less than the plan every day. How many days can it actually burn!
It is supposed to burn 0.05 tons less per day than planned, which can actually burn X days
It is planned to burn 0.2 tons of coal every day, which can be finished in 30 days
So the total amount of coal is 0.2 * 30 = 6 tons
x*(0.2-0.05)=6
0.15x=6
x=40
So it can actually burn for 40 days
1 / 2 + 2 / 3 * 3 / 4-1 / 6 divide by 1 / 5, add brackets as required, change the operation order 1. Subtract, multiply, divide by 2. Multiply, add, subtract by 3, subtract, multiply, add by 4, subtract, multiply, add by
1. Subtraction, multiplication, division and addition
1 / 2 + [2 / 3 * (3 / 4-1 / 6)] divided by 1 / 5
2. Multiply add subtract
[(1 / 2 + 2 / 3 * 3 / 4) - 1 / 6] divide by 1 / 5
3. Subtraction, multiplication and addition
1 / 2 + 2 / 3 * [(3 / 4-1 / 6) divided by 1 / 5]
4. Subtraction, multiplication, addition and division
[1 / 2 + 2 / 3 * (3 / 4-1 / 6)] divided by 1 / 5
What is the process of 1 / 3 times 1 / 4 division (3 / 4 minus 5 / 12)
1/3×1/4÷（3/4-5/12）
=1/12÷3/4-1/12÷5/12
=1/12×4/3-1/12×12/5
=1/9-1/5
=5/45-9/45
=-4/45
How to solve 2 / 3x - (X-5 / 12) = 5?
-1/3X=5-5/12=55/12
X=-55/4
36+x=3(12-x) 7.6-x=3x/(5-2)
36+x=3(12-x)
36+x=36-3x
4x=0
x=0
7.6-x=3x/(5-2)
7.6-x=x
2x=7.6
x=3.8
Solution equation: x + (3x-16) △ 25% = 10 (x + 1)
x+（3x-16）÷25%=10（x+1）， x+12x-64=10x+10， 13x-64=10...
X + (3x-6) + 25% = 10 (x + 1.4) find x
Such as the title
-3.2916666 is 79 out of 24
0.2 x-0.01 x = 1
Because 1 / 0.2 = 5
1/0.01=100
So 5x-100 * 0.3x = 1
5x-30x=1
-25x=1
x=-1/25
-How to calculate the square of 3x + 22x-24 = 0 (x + 8) (x + 1) = - 12
-The square of 3x + 22x-24 = 0
3x^2-22x+24=0.
(3x-4)(x-6)=0
3x-4=0,x-6=0,
x1=4/3,x2=6
（x+8）（x+1）=-12
x^2+9x+8=-12
x^2+9x+20=0,
(x+4)(x+5)=0
x+4=0,x+5=0,
x1=-4,x2=-5
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