Answer:
5.5, 9.5
Step-by-step explanation:
Let x and y be the numbers
x+y = 15
x-y = 4
Add the two equations together to eliminate y
x+y = 15
x-y = 4
------------------
2x = 19
Divide by 2
2x/2 =19/2
x = 9.5
Now find y
x+y = 15
9.5+y = 15
Subtract 9.5
x = 15-9.5
x =5.5
Answer:
c
Step-by-step explanation:
i just looked up the question
Answer:
Perimeter = 3.14 km^2
Step-by-step explanation:
Diameter = 2 , R = 1
Perimeter of semicircle = piR
= 3.14*1
= 3.14 km^2
hope it helps!!