Answer:
24 ways
Step-by-step explanation:
Given that
Number of students = 4
Lecturer have to stand in the middle position.
We have five places in which middle place is for lecturer,now we have four places and we have to arrange four students on that four places.So there will 4! ways to arrange those students.
4!= 4 x 3 x 2 x 1
4! =24
So we have 24 ways to arrange 4 students and one lecturer .
So first we see how many times the denominator can go into the numerator which is 7 times and the remaining is 3
So to write that: 7 3/7
So remember the formula for working out the slope:
(y2 - y1) ÷ (x2 - x1)
We already know two points:
(11, 5) and (20, 5) (Remember points are like (x, y)
Therefore y2 = 5 and y1 = 5 and x2 = 20 and x1 = 11
Substitute these into the formula from the start:
(y2 - y1) ÷ (x2 - x1)
(5 - 5) ÷ (20 - 11)
0 ÷ 9
And we can determine the slope is equal to 0 as 0 ÷ 9 = 0
300 - 240 = 60
60 = 20%
Respuesta:El descuento fue del 20%.
Espero te sirva :
Answer:
425261625
Step-by-step explanation:
1+2-4252+425251-34%+5%
