Question

ray is late for work but would like to drink some coffee before he leaves the coffee in the pot is too hot so Ray puts 20 small cubes in a mug before pouring in the coffee .the ice cubes measure 1 cm per side the mug is cylindrical and has height of 9cm and a base of 7 cm what is volume of the coff3 that will fill the mug after the ice cubes have been added (round to the nearest whole number)

Answer 1

Volume of the mug: PI r^2 (h)

R ====> Radius

H ====> Height

Radius of mug is:

7 / 2 * 1 / 2 b

===> 3.5cm^3

volume of mug:

===> 3.5^2 * PI r^2 * 9

===> 346 cm^3

20 ice cubes ===> 20 cm^3 is needed:

substract:

20 cm^3 - 346

===> 326 cm^3

The volume of the mug is the area of its base; The mug's height, or πr^2 h. This is; 3.5 cm * 3.5 cm. · 9 · π, or 346.2 cm3. The volume of each ice cube is 1 cubic centimeter, so 20 of them will occupy 20 cm^3.

Answer: This leaves 326 cm^3 for the coffee.

Hope that helps!!!! : )