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

B) 20

<u>The minimum of a data set is the </u><u>smallest</u><u> term of that set.</u>

We arrange the terms in ascending order

→ 20,20,25,30,35

So, the minimum is 20

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3 0
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Step-by-step explanation:

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3 years ago
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3 years ago
Find S16 for 1 + 7 + 13 + 19 +
amm1812

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4 0
3 years ago
Solve photo question. Mathematics. Please. Easy one. And last one.
Elan Coil [88]
A collection of nickels and dimes is worth $4.40. There are 53 coins in all. How many nickels are there?

Nickel is a US coin worth 5 cents or 0.05.
Dime is a US coin worth 10 cents or 0.10

n + d = 53
0.05n + 0.10d = 4.40

n = 53 - d
0.05(53 - d) + 0.10d = 4.40  
2.65 - 0.05d + 0.10d = 4.40
0.05d = 4.40 - 2.65
0.05d = 1.75
d = 1.75 / 0.05
d = 35

n = 53 - d
n = 53 - 35
n = 18 

There are 18 nickels and 35 dimes.

0.05n + 0.10d = 4.40
0.05(18) + 0.10(35) = 4.40
0.90 + 3.5 = 4.40
4.40 = 4.40
4 0
2 years ago
Read 2 more answers
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