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It is known that the sum of the solutions of the binary linear equations MX + NY = 2nx + my = 4 is equal to 3, and the value of M + n is obtained
From the meaning of the title, we know that MX + NY = 2nx + my = 4, ① + ②: (M + n) (x + y) = 6, ∵ x + y = 3, ∵ m + n = 2
How to read 1200540 English
Standard pronunciation: one million, two hundred thousand, five hundred and forty
How to spell English from 1 to 9?
1, bowl, 2, vomit, 3, water, 4, Buddha, 5, read first, father loves things again, father and love should be combined, 6, shoot to die, 7, shoot mosquito, 8, Pinyin EI, read special again, 9, bear Yin
How to read 0.59% in English?
RT
zero point five nine percent
Given the square of X + 5x-990 = 0, try to find the cube of X + 6x square-985x + 3
∵ the square of X + 5x-990 = 0
∴x²+5x=990
Cube of X + square of 6x - 985x + 3
=x³+5x²+x²-985x+3
=x(x²+5x)+x²-985x+3
=990x+x²-985x+3
=x²+5x+3
=990+3
=993
Let's start with a simple 6 (X-2) + X (2-x) second: given the square of X + 5x-990 = 0, find the cube of X + the square of 6x - 985 + 1008
1998
How much is (- 1 / 6 + 2 / 3) / (- 7 / 12) * 3, fast
(- 1 / 6 + 2 / 3) / (- 7 / 12) * 3
=﹙1／2﹚×﹙-7／4﹚
=-2／7
How much is n in equation n (n + 1) / 2 = 120!
The answer is 15, very confused, the process should be clear
n(n+1)/2=120
n²+n=240
n²+n-240=0
(n+16)(n-15)=0
So n = - 16 (rounding off) or 15
360 kg = what N.m
Torque conversion
If G = 9.8, then 360kg = 360 × 9.8 = 3468n · M
Take = 10, then 360kg = 360 × 10 = 3600n · M
One fourth of these apples are sold in the morning and one third in the afternoon
How many kilos of apples do you sell in the morning?
How many kilos of apples do you sell in the afternoon?
Morning: 360 × 1 / 4 = 90kg
Afternoon: 360 × 1 / 3 = 120 kg
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