an open steel tank measures 2m by 2.5m by 3m.It holds 7500 ml of water.What is the volume of steel,in cubic metres,making up the sides of the tank ?

2*2.5*3 = 15 m^3

7500 mL = 7.5 m^3
so steel volume = 15 -7.5 = 7.5 m^3
( ridiculously strong tank )

To find the volume of the steel making up the sides of the tank, we need to subtract the volume of the water from the total volume of the tank.

The total volume of the tank can be calculated by multiplying the length, width, and height of the tank:

Volume of tank = Length x Width x Height
= 2m x 2.5m x 3m
= 15 cubic meters

Now, we need to calculate the volume of water in the tank. Given that the tank holds 7500 ml of water, we need to convert it to cubic meters since the total volume of the tank is given in cubic meters:

Volume of water = 7500 ml = 7500 cm³ = 7500/1000 = 7.5 cubic meters

To calculate the volume of the steel, we subtract the volume of the water from the total volume of the tank:

Volume of steel = Total volume of tank - Volume of water
= 15 cubic meters - 7.5 cubic meters
= 7.5 cubic meters

Therefore, the volume of steel making up the sides of the tank is 7.5 cubic meters.