46.
3x + y = 2x +y
X+y=y
X= 0
3x + y + 2x +y = 4x+10
2y+x= 10
Y=5
380-57= 323
Answer: 323 legos remain
The chance that one of the defective components is

or 2.14285714% that the qc person will test a defective unit.
You would do 13 divided by 7 which is 1.8571, but you have to simplify, to the nearest hundredth. So 7 is greater than 5 so the answer would be $1.86
Answer:
1) Who wear: 2:5
Whi don't wear: 3:5
2) 10 don't wear spectacles
3) 25
Hope it helps!!!