Step-by-step explanation:
15 + 17 + 23 + 19
32 + 42 = 74
74/4 = 18.5 is the mean
Julio is x years old and his father is y years old:
y = 4 x
x + y ≥ 55
x + 4 x ≥ 55
An inequality is:
5 x ≥ 55
x ≥ 55 : 5
x ≥ 11
The youngest age Julio can be is 11.
Answer: -4, -2
Step-by-step explanation: The formula for a 180 degree counterclockwise rotation is x,y -> -x, -y. You change the sign for both numbers, so they both become negative.
Hope this helped!
Answer:
12
Step-by-step explanation: