You would add 3 on both sides
3x - 3 + 3 = 13 + 3
3x = 16
Answer:
134
Step-by-step explanation:
The ratio of Type O donors to total donors was ...
... 37 : (37+43) = 37 : 80
So, 37/80 is the fraction of total donors that were Type O.
Then the number of Type O donors expected in a group of 290 is ...
... (37/80) · 290 = 134.125 ≈ 134
Answer:
The answer is 47
Step-by-step explanation:
I'm pretty sure this is the answer :)
40 - 28 = 12
35 + 12 = 47
Proof: 35 - 28 = 7
47 - 40 = 7
Answer:
Step-by-step explanation:
is this is exactly the question? because it seems to be missing some parts?