It should be x= -6, if you’re trying to figure out what X is
The median is 7. By definition of "median," half of the data values are below 7; half are above 7. Thus, the first statement is FALSE.
Spread: in the 2nd statement we are comparing the spread from lower quartile (4) to the median (7) and that from the median (7) to the upper quartile (9). In other words, we're comparing 3 to 2. This statement is TRUE.
The 3rd statement is the opp. of the 2nd statement, and thus is FALSE.
The 4th statement is FALSE. See my comments regarding the 1st statement.
Gosh, the list of choices to pick from is so short !
The dimensions of the rectangle are
' L ' and ' 10/L ' .
I guarantee it.
Let the relative speed will be given by:
38/4=9.5 km/h
Let the speed of the first tourist be x km/h
the speed of the second one is (9.5-x) km/h
distance covered by the first one is:
4*x+2=4x+2 km
distance covered by the second one is:
(9.5-x)4 km
=(38+4x) km
total distance will be given by:
(38+4x)+(4x+2)=38
40+8x=38
8x=-2
x=-1/4 km/h
this mean that he was traveling in the opposite direct thus the speed was 1/4 km/k
The speed of the second one will be:
9.5-1/4=9.25 km/h