Solving m> iv
Therefore, the value range of m is m> four.
(2) let the price of milk be x.
Then 0.9x
The solution is 10.
Since the price of milk is an integer, the price of milk is 1 1 yuan.
(3) Length+width of rectangle = 16/2=8.
8= 1+7=2+6=3+5
Then there are three kinds (I wonder if there are any matches in the middle of the bag)
(4) Assume that X bottles of mineral water are purchased, and the total consumption is Y..
A shopping mall: y? =0.9 1.2x(x>0)
B mall: y? =﹛ 1.2x(0; 4.8+0.96x, and x >;; 40
3 if y? =y? , then1.08x >; 4.8+0.96x, the solution is x=40.
(5)x? -3x-10 = (x-5) (x+2) = (x+a) (x+b), then a=5 or -2, and b=5 or -2.
(6) Let the side length of a square be X and the other be Y. ..
4x-4y=96。
x? -Really? =960
X=32,y=8。
Then the side lengths of these two squares are 32 and 8cm respectively.
(7) 199? - 199= 199( 199+ 1)( 199- 1)= 199× 198×200
So 199? -199 is divisible by 198. Divisible by 200.
(8)ab/(a-x)
(9) If your hands are numb, write it yourself. . . .