1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vsevolod [243]
3 years ago
8

There are 5 swimmers in a race. There will be a first-place, a second-place, and a third-place prize awarded. In how many differ

ent ways can the 3 prizes be awarded?
Mathematics
1 answer:
raketka [301]3 years ago
3 0

Answer:

Step-by-step explanation:

This is a permutation problem.  There are 5 swimmers in the race, and any combination of 3 will finish in the first 3 places.  The formula will look like this:

₅P₃ = \frac{5!}{(5-3)!}  which will expand to

₅P₃ = \frac{5*4*3*2*1}{2*1}  and when the 2 * 1 cancels out between the numerator and the denominator, you're left with simply:

₅P₃ = 5 * 4 * 3

which is 60

You might be interested in
At the local market, Bill buys 3 juice boxes and 2 hot dogs at a cost of $8, while Sarah buys 2 juice boxes and 1 hot dog at a c
baherus [9]

Answer:

The cost of each juice boxes is $ 2

The cost of each hot dogs is $ 1  .

Step-by-step explanation:

Given as :

The amount which Bill pays for 3 juice boxes and 2 hot dogs = $ 8

The amount which Sarah pays for 2 juice boxes and 1 hot dogs = $ 5

Let The cost of each juice boxes = $ j

And The cost of each hot dogs = $ h

Now, According to question

3 j + 2 h = 8               .........A

2 j + 1 h = 5                 ..........B

Now, solving the equations

2 × (  2 j + 1 h ) = 2 × 5

or, 4 j + 2 h = 10

I.e ( 4 j + 2 h ) - ( 3 j + 2 h ) = 10 - 8

Or, ( 4 j - 3 j ) + ( 2 j - 2 h ) = 2

Or, j + 0 = 2

∴  j = 2

So , The cost of each juice boxes = j = $ 2

Now, Put the value of j in Eq A

I.e  3 × 2 + 2 h = 8

Or, 6 + 2 h = 8

Or. 2 h = 8 - 6

or, 2 h = 2

∴   h = \frac{2}{2} = 1

So, The cost of each hot dogs = h = $ 1

Hence The cost of each juice boxes is $ 2

And The cost of each hot dogs is $ 1  . Answer

4 0
3 years ago
Find the solution set of the inequality<br> 35- 4x &gt; 2
Orlov [11]
35-4x>2
-4x>2-35
-4x>-33
-x>-33/4
x<33/4    (x<8.25)

Solution: x<8.25.  or  x∈(-∞ , 8.25)
3 0
3 years ago
55.8 is 62% of what number
8_murik_8 [283]
All you have to do is multiply 55.8 by .62 to get the answer which is 34.596 but I rounded up it to 34.60
7 0
3 years ago
Read 2 more answers
A 24 ft ladder is positioned next to a house for window cleaning. The manufacturer recommends the ladder rest at an angle of 76°
Butoxors [25]

Answer:

6 feet

Step-by-step explanation:

cos = adj/hyp

cos76 = adj/24

multiply both sides by 24

24 * cos76 = adj

5.806125494392025 = adj

Rounded

6 feet

8 0
3 years ago
. If her allowance had stayed the same, $9.00 a month, how many carnival tickets could she bu
jarptica [38.1K]

Answer:

a) number of tickets she could buy in a month with her allowance in 2008 = 4 tickets

b) number of tickets she could buy in a month with the same allowance in 2012 = 2 tickets

c) $5, an increase of 55.56%

d) $2, a 100% increase.

e) Hallie was able to buy more tickets in 2008 than in 2012.

f) $16

Step-by-step explanation:

The complete question is presented in the attached image to this answer.

a) Halie's allowance monthly = $9

Price of a ticket in 2008 = $2

number of tickets she could buy in a month with her allowance = (9/2) = 4.5 = 4 tickets (since there are no half tickets)

b) Halie's allowance monthly = $9

Price of a ticket in 2012 = $4

number of tickets she could buy in a month with her allowance = (9/4) = 2.25 = 2 tickets (since there are no quarter tickets)

c) In 2012, Hallie's allowance was $14.00 per month. How much did her monthly allowance increase between 2008 and 2012?

Her monthly allowance in 2008 = $9

Her monthly allowance in 2012 = $14

The increase = new allowance - old allowance = 14 - 9 = $5

In percentage terms,

% increase = 100% × (new - old)/(old)

% increase = 100% × (14 - 9)/9 = 55.56%

d) How much more did a carnival ticket cost in 2012 than it did in 2008?

Price of a ticket on 2008 = $2

Price of a ticket in 2012 = $4

Increase in price = 4 - 2 = $2

% increase = 100% × (4 - 2)/2 = 100%

e) Was Hallie able to buy more carnival tickets in 2008 or in 2012 with one month's allowance?

Hallie was able to buy more tickets in 2008 than in 2012.

f) What would Hallie's allowance need to be in 2012 in order for her to be able to buy as many carnival tickets as she could in 2008?

Hallie could buy 4 tickets in 2008.

Price of a ticket in 2012 = $4.

Price of 4 tickets in 2012 = 4 × $4 = $16

Hope this Helps!!!!

3 0
2 years ago
Other questions:
  • What is 2• 2 • 2• 2• 2•2
    8·2 answers
  • Aaron bought a motor home for $50,000. If he later sold it for $10,000, find the loss as a percent of the cost price
    13·1 answer
  • Find the sum of the first 5 terms of the sequence 4,2,0
    13·2 answers
  • How do I find vertex
    12·1 answer
  • Find the hypotenuse of a right triangle with side lengths of 4 and 13. Round your answer to one decimal place.
    6·1 answer
  • In the set {(3,4), (4,4), (8,-1)} what is this not? *
    15·1 answer
  • What is important to remember when multiplying radicals?
    13·1 answer
  • James bought a new digital camera for $175.00. He pays a sale ax of 7.2%. What was the total of the camera
    8·2 answers
  • Calculate the speed for a car that went a distance of 125 miles in
    9·1 answer
  • What is the range of g?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!