The above is the method in solving the qn. Hope it works! :-)
Answer:
The volume of the wood used is
Step-by-step explanation:
<u>The Volume of a Rectangular Cuboid</u>
In a rectangular cuboid, all angles are right, and the opposite faces are equal.
The volume of a cuboid of dimensions a,b,c is:
V=a.b.c
The rectangular box is made of wood with externals dimensions of 25 cm by 20 cm by 15 cm.
The external volume of the box is:
The walls of the box are 0.5 thick each, this means that the internal dimensions are 1 cm less than the external dimensions, including the lid.
Thus the internal volume is:
The volume of the wood used is the difference between the external and the internal volumes:
The volume of the wood used is
Answer:
15 hrs
Step-by-step explanation:
every hour is $10, so divide 150 by 10
Answer:
11
Step-by-step explanation:
220/x=100/5
(220/x)*x=(100/5)*x - we multiply both sides of the equation by x
220=20*x - we divide both sides of the equation by (20) to get x
220/20=x
11=x
x=11.
By turning the percentage into a decimal and dividing it by the amount you choose. so 28.80 divided by 0.4 is 72 %.