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
hichkok12 [17]
3 years ago
13

Allison lives 380 miles from her grandmother. She plans to drive to her grandmother's house for the weekend. She will drive an a

verage of 60 miles per hour. Which equation represents the distance (d) Allison has left to drive after h hours?
A. D=380+60h

B. D=(380-60)h

C. D=380-60h

D. D=380h-60
Mathematics
1 answer:
Alisiya [41]3 years ago
5 0

Answer:

its b

Step-by-step explanation:

You might be interested in
there are 60 teams attend a chess tournament. every team will play with every other team exactly once. Supposed each team has a
Karolina [17]

The probability that no two teams win the same number of games, P ≈ 2.084 × 10⁻⁴⁵³

The reason for arriving at the above probability is as follows:

The given parameters are;

The number of teams in the tournament, n = 60

The chance of a team winning a game = 50% = 0.5

The number of ties = No ties

The required parameter:

The probability that no two teams win the same number of games

Method:

Calculate the number of ways no two teams win the same number of games, and divide the result by the total number of possible outcomes

Solution:

The number of matches played, n = \dbinom {60} {2} = 1,770

The possible outcomes = 2; Winning or losing

The total number of possible outcomes, n_p = 2¹⁷⁷⁰

The number of games won by each team is between 0 and 59

The ways in which no two teams won the same number of games is given by the games won by the teams to be 0, 1, 2,..., 57, 58, 59

Therefore, the number of ways no two teams won the same number of games, the required outcomes, n_k = 59!

Probability = \dfrac{Number \ of \ possible \ outcomes}{Number \ of \ required\ outcomes}

The probability that no two teams win the same number of games is given as follows;

\mathbf{P(No \ two \ teams \ won \ the \ same \ number \ of \ games)} = \dfrac{n_k}{n_p}

Therefore;

P(No \ two \ teams \ won \ the \ same \ number \ of \ games) = \dfrac{59!}{2^{1,770}} \approx \mathbf{2.084 \times 10^{-453}}

The probability that no two teams win the same number of games, P ≈ 2.084 × 10⁻⁴⁵³

Learn more about probability theory here:

brainly.com/question/1539712

3 0
2 years ago
Can i get help determining the value of x​
anastassius [24]

Answer:

i think its the first one

Step-by-step explanation:

SORRY if you get it wrong

8 0
3 years ago
What two numbers add to 8 and multiply to 28
anygoal [31]
Find numbers that multiply to 28 and add them to see if they add to 8
28=
1 and 28=29 not 8
2 and 14=16 not 8
4 and 7=11 not 8
that's it'
no 2 numbers
we must use quadratic formula

x+y=8
xy=28

x+y=8
subtract x fromb oths ides
y=8-x
subsitute
x(8-x)=28
distribute
8x-x^2=28
add x^2 to both sides
8x=28+x^2
subtract 8x
x^2-8x+28=0

if you have
ax^2+bx+c=0 then x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}
so if we have
1x^2-8+28=0 then
a=1
b=-8
c=28

x=\frac{-(-8)+/- \sqrt{(-8)^{2}-4(1)(28)} }{2(1)}
x=\frac{8+/- \sqrt{-48} }{2}
x=\frac{8+/- 4 \sqrt{-3} }{2}
x=4+/- 2 \sqrt{-3}
x=4+/- 2i \sqrt{3}
there are no real numbers that satisfy this
5 0
3 years ago
The length of a rectangle is 4 inches more than 4 times the width. The perimeter is 138 inches. Find the length and the width.
MatroZZZ [7]
4 times 4 which is 8 so 8 times 4 which is 32 so divide that by 138 but divide the 138 first and you will get 17.25?
5 0
2 years ago
Could someone help me? Thanks <3
earnstyle [38]

Answer:

D

Step-by-step explanation:

100 - 35 = 55 dollars remaining

55/20 = 3.25 hours until no money

4 0
2 years ago
Read 2 more answers
Other questions:
  • Mrs. Snell is writing a book. She has already written 25 pages and
    10·1 answer
  • A courtyard in the shape of a right triangle is set in the middle of three square office buildings, with one office building alo
    10·1 answer
  • What expression can you write to describe the overall change in temperature?Do not included the temperature at the beginning of
    12·1 answer
  • Which of the following sets of numbers could not represent the three sides of a triangles?
    8·1 answer
  • What is 2/9 as a decimal and a percentage?
    8·1 answer
  • If a= -5 and b= -2,then what is the value of [a-b]2
    6·2 answers
  • Lorreen sells 18 adult tickets, 23 student tickets, and 10 discount tickets for the school play. Write the ratio student tickets
    9·1 answer
  • HELPPP If _ABD and ZACD are both right angles, CD = 15, and BD = 4x-9, what is the value<br> of x?
    5·1 answer
  • Solve the following the inequality: 12 &lt; 4x - 16 &lt; 16
    10·1 answer
  • Can someone explain this
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!