Ask question

Ask question

All categories

3 years ago

15

You need 210 snowballs to make the perfect snow fort. you can make 15 snowballs an hour, but 2 melt every 15 minutes. how long w

ill it take you to build the perfect amount.

1 answer:

Blizzard [7]3 years ago

4 0

It will take you 30 hours to build a perfect fort

You might be interested in

A 16 ounce box of cereal is priced at $3.68. Find the cost per ounce *

ZanzabumX [31]

Answer:

0.23$

Step-by-step explanation:

16 ounce box of cereal is priced at =3.68$

∴1 ounce box of cereal is priced at=(3.68/16)$

=0.23$

6 0

3 years ago

There are two options for borrowing $5,000 from a bank: Bank A = 3% simple interest for 5 years Bank B = 2.5% simple interest fo

Andrew [12]

BANK A:
5,000*0.03*5=750
BANK B:
5,000*0.025*6=750

They are the same

6 0

3 years ago

Read 2 more answers

Solve the missing side length

djverab [1.8K]

Answer:

9

Step-by-step explanation:

I think these two triangles are similar so UT is similar with UC and US is similar with BU after that you should do it 12-BU is it enough?

7 0

3 years ago

lianna [129]

The number of permutations of the problem is

This = 24
Outfit = 360

<u>。。。。。。。。。。。。。。。。。。。。。。。。。。。。。</u>

<u> $\:$ </u>

<h2>Combination</h2>

$\:$

Combinations are the number of ways to choose members from a certain number, namely from members of a set, combinations can also be interpreted as many ways to make subsets, namely with a certain number of members, namely from members of a set, if a set has n members then the selection of r members, and the combination of n is where r is less than n.

$\:$

<h3>The Formula : </h3>

$\:$

<h2> $\frac {n!}{k! (n-k)!}$ </h2>

$\:$

<h2>Permutation</h2>

$\:$

Permutations are a way to determine the number of arrangements that occur by paying attention to the order. So in permutations, position/order is very important, namely AB is considered different from BA (AB ≠ BA). Permutation formula

$\:$

<h3>The Formula :</h3>

$\:$

$\frac {n!}{k!}$ (With Double Elements)

n! (Without Double Elements)

$\:$

<h2>Factorial</h2>

$\:$

The factorial of a natural number is the successive multiplication of a natural number that begins with the number one and arrives at the natural number, the factorial is used in calculating combinations, probabilities, and permutations.

$\:$

<h3>For example</h3>

$\:$

》2! = 1 × 2
》3! = 1 x 2 x 3
》4! = 1 x 2 x 3 x 4
》5! = 1 x 2 x 3 x 4 x 5
》6! = 1 × 2 × 3 × 4 × 5 × 6
》7! = 1 × 2 × 3 × 4 × 5 × 6 × 7
》8! = 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8
》9! = 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8 × 9
》10! = 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8 × 9 × 10

$\:$

The following is an example of a factorial that does not involve mixed arithmetic operations, so if you want to add it up we just need to calculate it like a normal number, a factorial number that only multiplies the difference between a factorial number that is added up by addition, subtraction, multiplication, division, for example see below.

$\:$

6! x2! - 3! : 4!

$\:$

The example above is a mixed arithmetic operation that contains multiplication, subtraction, and division. Remember that in mixed arithmetic operations, multiplication/division must be completed before addition/subtraction.

$\:$

<h3>The Formula : </h3>

$\:$

n! (Combined Multiplication)

$\:$

<h2>Place Filling Rules</h2>

$\:$

The Place Fill Rule is a method or method that can be used to determine the number of ways an object occupies its place. The filling slots rule is a method of calculating how many possible ways there are in an experiment or event. If a first event can be done in m different ways and the second event can be done in a different way and so on until the last event in k.

$\:$

<h3>The formula</h3>

$\:$

n1 × n2 × n3 × ... × nr

$\:$

<u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u><u>。</u>

<h2><u>Question</u></h2>

Find the number of permutations of letters of the word

- this

- outfit

$\:$

<h2><u>Answer</u></h2>

"Number One"

=》This = Four Letters ( 4! )

P = 4!

P = 1 × 2 × 3 × 4

P = 2 × 3 × 4

P = 6 × 4

P = 24

==========

"Number Two"

=》Outfit = Six Letters ( 6! )

=》Outfit = Two Letters The Same ( "T" ) = 2!

P = $\frac {1×2×3×4×5×6}{2×1}$

P = $\frac {2×3×4×5×6}{2}$

P = $\frac {6×4×5×6}{2}$

P = $\frac {24×5×6}{2}$

P = $\frac {120×6}{2}$

P = $\frac {720}{2}$

P = 360

$\:$

<h2><u>Conclusion</u></h2>

So, the number of permutations of the problem is

This = 24
Outfit = 360

$\:$

<u>。。。。。。。。。。。。。。。。。。。。。。。。。。。。。</u>

<h2>Learn More</h2>

$\:$

$\:$

<h2>Answer Detail</h2>

$\:$

➽ Subject: Mathematics
➽ Class : 12
➽ Chapter : 7 - The Rule of Counting:
➽ Maple Code
➽ Categorization code : 12.2.7
➽ Keywords : This, Outfit

5 0

3 years ago

Which inequality is the same as 7-2/b <5/b

Stells [14]

Answer:

$\large\boxed{0$

Step-by-step explanation:

$Domain:\ b\neq0\\\\7-\dfrac{2}{b}$

7 0

3 years ago

Read 2 more answers