When solving this inequality, you would do the inverse to the other side.
Subtraction is the inverse of addition.
So,
n + 9 (-9) <-3 (-9)
n<-12
When you subtract two negative numbers, you continue to the left of the number line.
I hope this helps!
~cupcake
Answer: Fifth
Step-by-step explanation: Second week really had the most sales, but it was not an option. Fifth week had the second most sales, and it WAS an option.
Well, there are 13 places that each horse can place. That means the first place has 13 options, second place has 12 options, third place has 11 options, etc. Though, we only care up to fourth place. When doing probability, we're multiplying in this case. So, here's the process:
How many ways all the horses can place = 13! = 6227020800
How many ways the first four places can place = 13*12*11*10 = 17160
Divide the second by the first and multiply by 100 for the probability as a percent:
(17160/6227020800)*100% ≈ <span>0.00027557319%
</span>
15 & 27 would be the correct pair
