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Excuse me: 65kg plastic, according to 12g / piece, 1 piece / 0.114 yuan (1 jiao 1 Fen 4%), a total of 5417 pieces, equivalent to 617.5 yuan Please help me figure out how much it is for a ton (1000kg). I want the formula and the answer,
Total price = unit price x quantity
Quantity = total weight △ each weight
12g = 0.012kg
0.114x(1000÷0.012)
=0.114x83333
=9500 yuan
How to solve 4x + (120 / 3x - 40 / 60) x = 120?
RT
4x + (120/3x - 40/60) x = 120
4x + 40 - 2x/3 = 120
12x+120-2x=360
10x=240
x=24
Excuse me, what is the simplest formula (Mathematics) for calculating shadow length?
Benchmarking height / benchmarking shadow length = object height / object shadow length
3x (x + 5) x 4x = 120
3x+15+4x=120
3x+15+4x=120
7x=105
x=13
3x+15+4x=120
7x+15=120
7x=120-15
7x=105
x=15
① 、△△ ②、△△ ③、△△△ ④、 △△△△
How many triangles are there in the nth pattern?
4 6 8
Use the formula containing letters to express is (). Reason
The first is 2
The second is 4
The third is 6
The fourth is 8
The fifth is 10
The sixth is 12
The difference between each pattern is 2, and there are 2n triangles in the nth pattern
Why is horizontal column multiplied by vertical column? You should understand it, so the answer is n × n. question: is it 2n or the square of N, otherwise how to say 2n
3X-18=13.2 1.5X-X=6 4X+1.2X=26
3x-18=13.2
3x=13.2+18
x=10.4
1.5x-x=6
0.5x=6
x=6/0.5=12
4x+1.2x=26
5.2x=26
X=5
All the mathematical formulas of grade 1 ~ 6
Like cube, cuboid, square, volume, area, cone, as long as it's taught in Grade 1 ~ 6, go, don't say it all
Square area side length times side length
Cube volume side length times side length times side length
One
Calculating 3x ^ 2-17x + 10 > 0 and 3x ^ 2-17x + 10 by cross phase multiplication
3 = 1 * 3 1 - 5, the result is - 17
10=-2+-5 3 -2
3x^2-17x+10
=(3x-2)(x-5)
When 3x ^ 2-17x + 10 > 0,
3x-2 > 0, X-5 > 0, x > 5
Or 3x-2
The formula of tax rate is the formula of sixth grade mathematics, not other, the calculation method!
Tax payable △ income = tax rate
Cross phase multiplication decomposition x ^ 2-3x-10
x^2-3x-10
=(x-5)(x+2)
x^2-3x-10
1 2
1 -5
（1*-5）+（1*2）=-3
So, the original formula = (X-5) (x + 2)
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