A....... The mean can't be 30 because normally, the mean is lower than the highest number in your data....
B.......... There are 5 numbers, and 15 is the 2nd highest number..... so no it can't be the median
Answer:
see attached
Step-by-step explanation:
The figures have orientations (for example, the long-axis direction) that differ by 90°. The reflections of selections 2 and 3 cannot accomplish that. Only the first and last choices are viable.
x = 3y - 1
2y + x = x + 18
2y + 3y - 1 = 3y - 1 + 18
5y - 1 = 3y + 17
2y = 18
y = 9
x = 3(9) - 1
x = 27 - 1
x = 26
Your (third) selection is correct. Just only refer the value of x to get the value of y dependently.
420:540 or 70:90 or 35:45 or 7:9
Choose either one if I'm wrong I'm sorry
