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Ronch [10]
3 years ago
15

How many combinations are there of the five letters j, k, l, m, and n using three letters at a time?

Mathematics
2 answers:
nikdorinn [45]3 years ago
7 0
<span>5 n C r 3 = 10 </span><span>がんばってね</span>
Oksi-84 [34.3K]3 years ago
7 0

Answer:

5 n C r 3 = 10 がんばってね

Step-by-step explanation:

がんばってね= Do your best

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Which of the following is a composite number between 30 and 50? A. 37 B. 33 C. 41 D. 43
Nonamiya [84]
It is answer B I hope I helped u
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Hi , the answer I choose was wrong , what is the correct answer ? Will choose brainlest so be quick
Anastaziya [24]

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maybe its the other SAS

Step-by-step explanation:

it might be Hypotenuse Leg, but im nto 100% sure

4 0
3 years ago
Susan charges $8 per hour walking her neighbor’s dog. She charges $12 per hour babysitting. Part A: Define the variables. Part B
Anna35 [415]

Answer:

the total she earns with "d" hours of dog walking and "b" hours of babysitting is given by:  8 d + 12 b

Step-by-step explanation:

If we use "d" to represent the number of hours that Susan walks the dog, and we define "b" as the number of hours she babysits, then the expression that represents the amount she earns by walking the dog is: $8 times d = 8 d

Similarly, the amount she earns by babysitting is $12 times b = 12 b

Then the total she earns with "d" hours of dog walking and "b" hours of babysitting is:  8 d + 12 b

7 0
3 years ago
Ally borrows 22,000 for a car at a 4.2% interest rate over 4 years. how much interest does she pay
Olenka [21]

Answer:

344025

Step-by-step explanation:

20,000 x decimal multiplier

decimal multiplier = 1.0425

20,000 x 1.0425 = 20850

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8 0
3 years ago
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The number of phone calls between two​ cities, N, during a given time period varies directly as the populations p 1 and p 2 of t
kherson [118]

Answer:

∴73,563 calls are made between two cities with populations of 100,000 and 160,000 that are 435 miles apart.

Step-by-step explanation:

Given that,

The number of phone calls between two cities (N )

  • directly proportional as the value of populations p_1  and p_2  of two cities.
  • Inversely varies as the magnitude of distance (d).

N\propto\frac{p_1p_2}{d}

N=k.\frac{p_1p_2}{d}

Given that,

N=18,000, d=310 miles,  p_1=15,500 and p_2=180,000

18,000=k.\frac{15,500\times 180,000}{310}

\Rightarrow k=\frac{18,000\times310}{15,500\times 180,000}

\Rightarrow k=\frac{31}{15,500}

Now,

N=? , d=435 miles,  p_1=100,500 and p_2=160,000

N=\frac{31}{15,500}.\frac{100,000\times 160,000}{435}

\Rightarrow N\approx 73,563

∴73,563 calls are made between two cities with populations of 100,000 and 160,000 that are 435 miles apart.

5 0
3 years ago
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