There are 5 swimmers in a race. There will be a first-place and a second-place prize awarded. In how many different ways can the 2 prizes be awarded?
2 answers:
Answer: so we have 5 positions, but we only care for the first two.
So, in the first position there are 5 options (because there are 5 swimmers).
In the second position whe will have 4 options (because there are already one swimmer in the first position).
So you have 5*4 = 20 ways for the prizes to be awarded.
It would be 20, because; 1 - 2 / 3 / 4 / 5 2 - 1 / 3 / 4 / 5 3 - 1 / 2 / 4 / 5 4 - 1 / 2 / 3 /5 5 - 1 / 2 / 3 / 4 = 4x5 = 20
You might be interested in
78-47=31 47——————————————————————————————78
Answer:
The x coordinate is 2
Step-by-step explanation:
Since the point is on 2 of the x-axis. The exact coordinates of that point is (2,0)
Answer:
$22.50
Step-by-step explanation:
Answer: $100.70
Step-by-step explanation: 6% is equal to 0.06, so you can add multiply the price of the item by 1.06 because that is the base cost plus the tax. Then you get $100.70.
The expression would be written as:
n-3
N is any number. This expression means two-fifths of a number, subtract three. Now substitute 25 for n.
(25)-3
=10-3
=7