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Ganezh [65]
3 years ago
6

At a carnival, Ann sold 314 bottles of drinks a day. She sold 66 bottles more in the afternoon then in the morning. How many bot

tles of drinks did she sell in the morning?
Mathematics
1 answer:
Paladinen [302]3 years ago
8 0

Answer:

Ann sold 124 bottles of drinks in the morning

Step-by-step explanation:

Let

x ---> bottles sold in the afternoon

y ---> bottles sold in the morning

we know that

Ann sold 314 bottles of drinks a day

so

x+y=314 -----> equation A

She sold 66 bottles more in the afternoon than in the morning

so

x=y+66 ----> equation B

substitute equation B in equation A

y+66+y=314

solve for y

2y=314-66\\2y=248\\y=124

therefore

Ann sold 124 bottles of drinks in the morning

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Raj is visiting the United States and needs to convert 2000 rupees to US dollars
Stells [14]

Answer:

After converting Raj will have $31.88 USD

Step-by-step explanation:

1 unit rupee =  0.01594 USD

It is given that,

Raj is visiting the United States and needs to convert 2000 rupees to US dollars

<u>Convert 2000 rupees to USD</u>

To find USD we have to multiply rupees with 0.01594

USD = 2000*0.01594

USD = $31.88

Therefore Raj will have $31.88 USD

7 0
3 years ago
Read 2 more answers
a) expected value of a die b) suppose you play a game where you get a dollar amount equivalent to the number of dots that show u
UkoKoshka [18]

Answer:

a) The expected value of a die is 3.5

b) The fair value of this game is 4.25 dollars

c) The fair value of this game is 4.6667 dollars

Step-by-step explanation:

a) All the values are equally likely, so to get the expected value of the die we just sum all possible values and divide by the total amount of possible values, 6.

\frac{1+2+3+4+5+6}{6} = 3.5

Thus, the expected value of a die is 3.5.

b) The fair value is the expected value of the game. You will reroll the dice only if you expect to get more value on the second throw than what did you obtain on the first one. Since the expected value of a die is 3.5, then you will only reroll the die if you obtain 3 or less, and the probability for that is 1/2.

This means that there is a probability of 1/2 to make a second roll, with expected value 3.5, and a probability of 1/6 to obtain each of 4, 5 or 6 with the first die and keep that value (because it is higher than the expected value from one dice). Therefore, the expected value of this game is

1/2 * 3.5 + 1/6 (4+5+6) = 4.25

The fair value of the game is 4.25 dollars.

c) You can interpret this game as if after your first roll, you can keep that value or play the game described in b, where you roll once and reroll once if you want. Thus, if you decide to decline the value of the first die and reroll, then the expected value of the game will be 4.25. As a result, you will only reroll if you obtain a 4 or lower in the first die, which happens with a probability of 4/6 = 2/3. If you obtain 5 or 6, which happen each case with probability 1/6, you will keep that value because it exceeds your expectations. As a consecuence, the expected value is

2/3 * 4.25 + 1/6*(5+6) = 14/3 = 4.6667

The fair value of the game is 14/3 = 4.6667 dollars.

7 0
3 years ago
Help me please help me help me please
NeTakaya
P = 2(l+w)
120 = 2(35+w)
120/2 = 35+w
60 = 35 + w
60 -35 = w
25 = w

so width = 25

answer is b. 25 meters
7 0
3 years ago
Read 2 more answers
Six more than a number can be written as which variable expression
olga2289 [7]
N+6 is what I would say.
4 0
3 years ago
What is the domain function on the graph
sattari [20]
ANSWER

All real numbers greater or equal to -3.


EXPLANATION

The domain of the given function are values of x that make the function defined.


We can see from the graph that, the domain are x-values greater than or equal to -3.



In other words, we can find a corresponding y-value for all x-values greater than or equal to -3.

The correct answer is option D.
4 0
3 years ago
Read 2 more answers
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