To find mass of the cube first find volume of cube material
edge of cube = 10 cm
edge of inner cube (hollow space) = 10 - (2.5+2.5) = 5 cm
total volume of cube = 10^3 = 1000
total volume empty space = 5^3 = 125
Volume of cube material = 1000 - 125 = 875 cm^3
Mass of cube = density x volume = 7.9x10 x 875 = 69125 g <span>= 69.125 kg
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I'm not 100% sure it's correct but it's 15(2)-5(2)=x+9(3)8(3)
30-10=20+27-24=3
23
Because 1 meter is 1000 millimeters.
32 meters would be 32,000
But there is a decimal point in 3.2, so you would erase one 0.
So 3.2 meters=3,200 millimeters
He sold 72 planters in total.
72/4= 18
18 is what he sold on the first day
14 on the second day
20 on the third day
20 on the fourth day.
First you must reduce -4(2x-1) which is -8+4>5-3
