Answer:
Step-by-step explanation:
Given that :
Time spent = 5/6
Fraction of students graded = 3/5
Amount of time grading 3/5 of students = 5/6 hours
Total fraction of students = 1/1
If 3/5 of students take 5/6 hours
Then, 1/1 of students will take x
Using cross multiplication :
3/5 = 5/6
1 = x
3x / 5 = 5/ 6
3x * 6 = 5 *5
18x = 25
x = 25 / 18
x = 1.38888 hours
Answer: oof
Step-by-step explanation:
Cot A=1/tan A=12/5
cos A= 12/13
sin A=5/13
Draw a right angled triangle
the hypotenuse is the longest side which is 13 using Pythagoras theorem
the side opposite the angle A is 5
the side closest to the angle A which is called the adjacent is 12
sinA =opp/hyp
cos A= adj/hyp
cotA =1/tanA=cos A/sinA
Note: Pythagoras theorem is
hyp²=opp²+adj²
When m is 0, the other 2 variables is 0 as well.
when m is 1, the other 2 variable is 20.
when m is 2, the other 2 variable is 40.
when m is 3, the other 2 variable is 60
when m is 4, the other 2 variable is 80.
Im not too sure what you write for the second column in the table, but I think you can just write 20 times the number, whatever m is.
We have 3*4+2, or 14, by substituting in for x.