Therefore, the number of parts in this batch =6x=4y.
y=3x/2
Because two people cooperated to make 120 parts in two days,
Therefore, 2(x+y)= 120.
That is 2x+2y= 120.
2x+3x= 120
x=24
y=36
So the number of this batch of parts =6*24= 144.
five
1 1=5 +6, 13= 1 1+2
19= 13+6,22= 19+3
28=22+6,32=28+4
38=32+6,43=38+5
1 2 3 5 9 ? ? 1 1 ? It means there is a problem, no.
3*2* 1=6
720-027=693
5*4*3*2* 1= 120
4*5*4*3*2* 1=480
8 species
5*3= 15 species
The canteen cooked two kinds of meat dishes, five kinds of stir-fry and three kinds of soup today. How many different choices are there for a dish?
Choose or not choose? Optional 10; If you choose one, 2*5*3=30.
3*4*2=24 species
55
522 1
52 1 1 1
5 1 1 1 1 1
22 1 1 1 1 1 1
2 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1
1 * * * 7 species
First of all, these are all going to get off work