Answer:
0.491 or 49.1%.
Step-by-step explanation:
Prob(selecting a senior male)
= number of senior males / total number of students
= 82/167
= 0.491
The total surface area of the cube is 
Step-by-step explanation:
Here we want to find an expression for the surface area of a cube if side x.
First of all, we notice that the cube consists of 6 equal faces; each face is a square, so the area of each face is the area of a square of side x, therefore:

Since we have 6 faces, the total surface area of the cube will be

And therefore,

So, this is the total surface area of the cube.
Learn more about area and volume of solids:
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60 seconds = 1 minute
135 seconds = 135/60 = 2.25 minutes
Answer:
OK TY SIR
Step-by-step explanation:
Answer:
1:3
Step-by-step explanation:
First, you need to make a system of equations for the situation.
Let G represent the number of girls and B represent the number of boys.
Since there are twice as many girls as boys,
G = 2B
There are a total of 30 students in class so,
G + B = 30
or
G + B = TOTAL
In order to find the ratio of BOYS to the TOTAL STUDENTS,
you plug in B values that make up G.
(2B ) + B = TOTAL
3B = TOTAL
B = TOTAL / 3 or (1/3) TOTAL
Since B is one third of the total number of students, the ratio is 1:3.