The answer would be to divide 1030 by 50 and you would get 21 coaches not 20 because 50x20=1000 and there are 30 remainder. Therefor, you would need that extra coach with some seats left to spare. so your answer is 21 coaches
Area of parallelogram = base x height
Area = 6 x 5
= 30 unit ^2
Aliaa got a mark of 60 in her first 4 tests, so her total mark is 60 x 4 = 240. On her fifth test, she got a mark of 80.
So her average is:
(240+80)/5 = 320/5 = 64
Her avg is 64 (c).
F(-5) just means that your substituting the number -5 for every x value. So if you have x+1 this would be -5+1 which is -4
C) The mean Value is closer to the middle of the range than the Median
Hope this helped!
