Answer:
Step-by-step explanation:
If you have an odd number of consecutive numbers, the middle number should be x. So 7 of them would be written as
(x - 3)+(x - 2) + (x - 1) + x + (x + 1) + (x + 2) + (x+3)
That way all you are left with is 7x because the integers cancel.
That is not your question
You question is
Sum = m+(m + 1) + (m + 2) + (m + 3) + (m + 4) + (m + 5) + (m + 6)
15:40
= 15/40
= 3:8
An equivalent to 15:40 is 3:8~
It’s the first one I think!
Answer:
L=80
W=20
Step-by-step explanation:
Perimeter = 2×L+2×w
L=w+60
Perimeter - 2×60 = 4×w
200-120 = 80
80/4= w = 20
L=w+60 = 80
Answer:
50 % probability that the hat is blue.
Step-by-step explanation:
3 blue and 3 black = 6 total tickets
3/6 chance of blue and 3/6 change of it being black
3/6 = 1/2 = 0.5 = 50%
