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
Nuetrik [128]
3 years ago
9

An English class consists of twenty students, and four are to be chosen to give speeches in a school competition.

Mathematics
1 answer:
NemiM [27]3 years ago
4 0
A)If the order of the speakers is important, we have 20x19x18x17, or 116,280 different options.
b) If order is not important, then we have 20 choose 4, or 4845 different slates. ☺☺☺☺
You might be interested in
The product of Greg's savings and 3 is 57.
Norma-Jean [14]

Answer:

Greg's savings: 19 x 1

Step-by-step explanation:

57 / 3 = 19

19 is prime, so Greg's savings has to be 19 x 1.

3 0
2 years ago
Estimate 148% of 103
hammer [34]

Answer:

152.44

Step-by-step explanation:

148/100*103=152.44

6 0
3 years ago
Can anyone help me with this problem? Im really confused. If you could please,, explain it to me? I would really appreciate it.
Molodets [167]

Answer:

Below in bold.

Step-by-step explanation:

Amount originally in the cup = amount she drank + amount remaining

= 17 * 4.5 + 148.5

=  76.5 + 148.5

= 225 milliliters.

The time she takes to drink the 148.5 mL = 148.5 / 4.5

= 33 seconds.

So time to drink it all = 17 +33 = 50 seconds.

4 0
3 years ago
If R is the midpoint of OS , RS = 2x - 4, ST = 4x – 1, and RT = 8x – 43, find QS.
RoseWind [281]

Answer:

56

Step-by-step explanation:

5 0
2 years ago
What is the interest rate $2,200 at 7.5% for 3 1/4 years
Phoenix [80]

Answer:

$536.25

Step-by-step explanation:

First, you need to find what 7.5% of $2,200 is,

(2200/100)7.5=165

then to find how much interest has accumulated over 3 1/4 year you need to multiply the one-year interest rate by the 3.25

(165)3.25=536.25

5 0
3 years ago
Other questions:
  • In a 6 team floor hockey league each team plays each of the other teams twice what is the total number of games played
    13·1 answer
  • What is the solution of the system of equations? y=-4x+10 y=-2x-6
    14·1 answer
  • How to find the area of the seating area
    9·2 answers
  • PLEASE HELP!! DUE IN AN HOUR!
    9·1 answer
  • Please help, Look at the picture
    15·1 answer
  • Triangle abc is an isosceles triangle in which ab=ac what is the perimeter of abc
    12·1 answer
  • Which of the following pairs of values for x and y would
    5·2 answers
  • Help me please!
    5·1 answer
  • Find the volume and surface area of prism​
    12·1 answer
  • X+2y=5 and 4x-12y=-20 solve using elimination and substitution
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!