Answer:
x = 
Step-by-step explanation:
i think this is
Answer:
-4/3 (Answer A)
Step-by-step explanation:
Here we go from the point (-3, 3) on the left to the point (0, -1) on the right. It is immediately apparent that x (the run) increases by 3 from -3 to 0 and that y (the rise) decreases by 4 from 3 to -1. Thus, the slope of this line (which is also the rate of change) is
m = rise / run = -4/3 (Answer A)
Answer:
80.
Step-by-step explanation:
Three digit number can only have three patterns
A. All digits are distinct
B. Two digits are same and third is different
C. All three digits are alike.
We need to calculate B
that is B= Total- A-C
Total numbers from 700 to 999= 299.
Number numbers having all digits distinct = 3×9×8= 216 ( first digit can have only three digits 7,8,9)
All three are alike = 3 ( 777,888,999).
So, 299 -216-3= 80.
Answer:
60 minutes
Step-by-step explanation:
Given the schedule above :
Red line arrives every 4 minutes
Blue line arrives every 5 minutes
Yellow line arrives every 6 minutes
All three just arrives at the train station ; when next will they all arrive at the train station at the same time.
Obtain the lowest common multiple of each arrov time :
Lowest common multiple of 4, 5, 6
_2___4___5___6
_2___2___5___3
_3___1___ 5 __ 3
_5___1___ 5 __ 1
_____1 ___1 ___1
Hence, lowest common multiple :(2 * 2 * 3 * 5) = 60
Hemce, they all arrive at the train station at the same time after 60 minutes
