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Andre45 [30]
3 years ago
11

A video store is running a closeout special of 5 DVDs for $15. If the store has 42 different titles in the closeout section, how

many different
combinations of 5 DVDs can be purchased?

Mathematics
1 answer:
Elenna [48]3 years ago
4 0

Answer:

C. 850,668

Step-by-step explanation:

Since order doesn't matter, we use the combination equation: nCr

We first need to find n, which would be 42. Then we find r, which is 5.

We plug them into either the equation or a calculator

(42!)/(5!(42-5)!) = 850,668

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4) Adult tickets for the evening show at XD Theater are $11 and children's tickets are $Belf the theater seats 250 people, how m
kozerog [31]

Omitted value: The price of children ticket was omitted in the question, so i used $8 to solve. You can input the correct value and solve the same way following the steps.

Answer: 100 adult tickets  must be sold.

Step-by-step explanation:

step 1

let  x represent Adults

AND y represent children

Since the theater seats 250 people we have that

x+y = 250..... equation 1

Also price for Adult ticket = $11

and  price children ticket =$8

With total sales at $2,300, we have that

11x + 8y= 2300----- equation 2

Step 2

Making y subject in equation 1

' x+y = 250

y= 250-x

Putting y= 250- x in equation 2

11x + 8(250-x)= 2300

11x +2000-8x= 2300

11x -8x = 2300-2000

3x= 300

x 300/3

x= 100.

To find y

 x+y = 250

100+y=250

y=250-100

y=150

Therefore 100 adult tickets and 150 children tickets must be sold to get a total sales of $2,300

5 0
3 years ago
Here are the questions:
yaroslaw [1]

Answer:

Q1) 0.46 Q2)0.2333

Step-by-step explanation:

Q1) P=(4+12+7)/50 =0.46

Q2) P=7/(4+7+10+9)

6 0
3 years ago
A charity is considering the possibility of having a benefit night at two different restaurants. The owner of the local Italian
Anastasy [175]

66 Diners promised to participate

1,013 is what each restaurant would donate

 947 + x = 683 + 5x

-683        -683

 264 + x = 5x

          - x   -x

  264 = 4x

 

Divide 264 by 4 = 66

5 0
3 years ago
I REALLY NEED HELP MY DAD YELLED AT ME
alex41 [277]

Answer:

2/3

Step-by-step explanation:

f(x)=g(x)

-3x+4=2

Add 3x

3x+2=4

subtract 2

3x=2

divide by 3

x=2/3

4 0
3 years ago
Read 2 more answers
2, 3, 6, 8, . . . is an example of an infinite alternating series. True False
vaieri [72.5K]
Answer: False.

Explanation: An alternating series is on in which the alternate terms are negative & positive.
Example, <span>1/2 − 1/4 + 1/8 − 1/16 + ⋯  is an alternating series.

but here, in the given series - all numbers are positive . Hence, it is not an infinite alternating series.

</span>
8 0
3 years ago
Read 2 more answers
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