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Angelina_Jolie [31]

3 years ago

5

A spelling test is given to 400 students in madison county. Those who score in the top 5% will compete in the county spelling be

e. How many students will be in the county spelling bee

1 answer:

Mashutka [201]3 years ago

3 0

20 students

We know that 5% of 100 is 5

And 5% of 200 is 10

5% of 300 is 15

So that must mean 5% of 400 is 20

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P < 4.75 represents the prices p in dollars that Paige is willing to pay for popcorn. The inequality p < 8.00 represents t

vesna_86 [32]

Answer:

1 theater

Step-by-step explanation:

Given

$P$ --- Popcorn

$P < 8.00$ --- Movie

See attachment for the table that shows ticket and popcorn prices at five movie theater chains

Required

The number of theaters that supports the given inequality

The given inequality can be combined to give:

$P < 4.75\ and\ P$

From the table entries, only one theater supports this inequality.

Where

$P = 4.25$ --- Movie

$P = 7.25$ --- Popcorn

Which gives:

$4.25 < 4.75\ and\ 7.25$

7 0

3 years ago

9. A band director wants to form a committee of 4 parents from a list of 45 band parents.

Alex73 [517]

Answer:

Part (A): The number of ways to select 12 jurors are 86493225.

Part (B): The number of ways to select 2 alternates are 306.

Part (C): Part (a) is an example of combination and Part (a) is an example of permutation

Step-by-step explanation:

Consider the provided information.

A band director wants to form a committee of 4 parents from a list of 45 band parents.

Part (A): How many different groups of 4 parents can the band director select?

Since order doesn't matter so we will use combination.

Use the formula for combination $^{n}C_{r}=\frac{n!}{r!(n-r)!}$

Substitute n=45 and r=4 in above formula.

$^{45}C_{4}=\frac{45!}{4!(45-4)!}$

$^{45}C_{4}=\frac{45!}{4!41!}$

$^{45}C_{4}=148995$

Hence, the number of ways are 148995.

Part (B) How many different ways can the band director select 4 parents to serve in the band parents’ association as president, vice president, treasurer, and secretary?

Since the order matter so we will use permutation:

The formula for permutation is: $^{n}P_{r}=\frac{n!}{(n-r)!}$

Substitute n=45 and r=4 in above formula.

$^{45}P_{4}=\frac{45!}{(45-4)!}$

$^{45}P_{4}=\frac{45!}{41!}$

$^{45}P_{4}=3575880$

Hence, the number of ways are 3575880.

Part (C) . Explain the difference between parts (a) and (b) in terms of how you decided to solve each part.

Part (A) is an example of number of combination where order doesn't matter.

Part (B) is an example of permutation where order matter.

7 0

3 years ago

1. whats 2/3 plus 1/9<br> 2. 5/7 plus 1/2<br> 3.7/15 plus 2/15

Oksana_A [137]

1. 5/9
2. 17/14
3. 9/15

7 0

4 years ago

Read 2 more answers

H(t)=2t-2 <br> g(t)=t-1 <br> find h(g(2))

Crazy boy [7]

T = 2

To find this, follow these steps.

First, you need to find g(2):

t-1
2-1
1

Therefore 1 is your first answer. Then you input that answer into h(t).

2(t) - 2
2(2) - 2
4 - 2
2

Thus, 2 is your final answer.

Hope this helps!

5 0

3 years ago

. , FG = 40, RS = 40, OP = 15. Find x. 20 15 21 17

kompoz [17]

The answer is 36382&

3 0

3 years ago