144liters
Another dimension is needed to work out the surface area of the roof.
The total square feet of the hallway is 630 square feet. If it takes 1/2 ounce per square foot, dividing by 2 gives you 315 fluid ounces.
15 straws are needed
one coulomb * one volt = one Joule So the potential difference is one volt.
The amount of tiles needed to cover a floor will depend on the size of the floor.
50liters
50 liters
50
256 liters
50 Liters of the 60% solution.
You need 256 litres.
.80x+.30y=400*.62 .80x+.30y=248 This is equation one. x+y=400 x=400-y This is the second equation. .80(400-y)+.30y=248 320-.80y+.30y=248 -.50y=-72 Y=144 X=256 CHECK .80(256)+.30(144)=400(.62) 204.8+43.2=248 248=248
4.84
10 liters
2.5ml
16 2/3 liters
12ml