C=2(pi)r... 81.64 2(3.14)(13)... hope that helped :)
Answer:
d/2 = r if you are talking about circles, if that's the case then the r would be 5
Answer:
41
Step-by-step explanation:
Original number xy
x + y = 5
3 (10y + x) -1 = 10x + y
30y + 3x -1 = 10x + y
7x - 29y + 1 = 0
x = 5 - y
7 (5-y) - 29y +1 = 0
35 - 7y - 29y +1 = 0
36 - 36y = 0
36y = 36
y = 1
x = 5-1 = 4
Original number: 41
check: 4+1=5
3 x 14 - 1 = 42 -1 = 41
Answer: I believe the answer is associative property
Step-by-step explanation:
