The volume displacement method is a manifestation of Archimedes' Principle. This principle states that the volume of the object placed on a known volume of water, is equal to the volume of water displaced. Actually, it could just be any liquid. Thus, whatever the displaced volume is, that is equivalent to the volume of the metal sample. I can't give an exact answer because there is no given information. But the concept works that way.
To subtract 7/10 by 1/2, you need to find the common denominator. In this case, the common denominator would be 10. Multiply 1/2 by 5/5, which gives you 5/10. Now you can subtract 7/10 and 5/10.
Once you finish subtracting, you should get 2/10. This answer can be simplified to 1/5.
Rpt. Disminuyo en un 30%la cantidad de estudiantes
1430=100%
1001= x
1001x100
----------------- = 70%
1430
100%-70% =30%
Let
b-----> the length of the base of the rectangle
h-----> the length of the width of the rectangle
we know that
Area of the rectangle=b*h
in this problem
b=24.2 ft
h=16.25 ft
so
area=24.2*16.25-----> area=393.25 ft²
the answer is
the area of the frame is
393.25 ft²
For this case we have the following functions:
We must find 
By definition of composition of functions we have to:
So:
We have different signs subtracted and the sign of the major is placed.
Finally we have to:
ANswer:
