Since 1 cm = 10 mm
Then 4 cm = 40 mm
Percent means parts out of 100
28%=28/100=14/50=7/25
Answer:
it needs to be less dense than water and weight needs to be equal to buoyant force.
3+(-5)x=19
Subtract 3 from both sides of the equation.
-5x= 16
Divide by -5 on both sides
X= -3.2
