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professor190 [17]
3 years ago
5

Triplets Adam, Bruce, and Charlie enter a triathlon. If there are 9 competitors in the triathlon and medals are awarded for firs

t, second, and third place, what is the probability that at least two of the triplets will win a medal?
Mathematics
1 answer:
melisa1 [442]3 years ago
6 0

Answer: Probability that at least two of the triplets will win a medal is19/24

Step-by-step explanation:

Total number of cmpetitors=9

Total number of selecting 3 winners out of 9 competitors=9C3=84

Number of ways of selecting 2 out of 3 triplets=3C2

Number of selecting 1 out of 6 others =6C1

Number of selecting 2 out of 3 triplet and o1 out of 6 others= 3C2 ×6C1=18

Number of selecting 3 out of 3 triplets=3C3=1

Total ways of selecting less than 2 or 2 triplets= 18+1=19

Probability that at least 2 of the triplets will win is 19/84

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10 A group of young men decided to raise sh 480 000 to start a business.. Before the actual payment was made, four of the member
stich3 [128]

A group of young men decided to raise Ksh.480000 to start a business. Before actual payment was made four members pulled out and each of the remaining had to pay an additional Ksh.20000. Write an expression in terms of P for.

(a) (i) Original contribution of each member.

(ii) Contribution after withdrawal of four members.

(b) Form an equation in P and hence determine the number of initial members.

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3 0
2 years ago
If the Greatest Common Factor of L and M is 6, write the expression for the Least Common Multiple of these numbers.
Serga [27]

Answer:

\frac{(L x M)}{6}

Step-by-step explanation:

The greatest common factor is the greatest number that will divide two values. We have two values L and M. Each has numbers which multiply together to give the number. The highest value or most in common they share is 6. This is the GCF.

The least common multiple is the smallest positive number which is a multiple of the two. This means both L and M divide into it evenly.

We know L x M is a multiple because L and M will be factors of it. But we don't know its the least.

As an example if L= 42 and M = 60, they have GCF 6. We can multiply them to find a multiple 42 x 60 = 2520 but we don't know this is the smallest or least multiple we can find. If we divide by the GCF, 2520/6=420. Interestingly, 42 x 10 =420 and 60 x 7 =420. This means 420 is the least common multiple.

We can multiply (L x M) and then divide by the GCF of L & M to find the least common multiple.

\frac{(L x M)}{6}

3 0
3 years ago
What is 7 times10000000 times34times21234450129432615
Gnom [1K]

Answer:

5,053,799,130,804,962,370,000,000‬

Step-by-step explanation:

7 0
3 years ago
What is the sum of 12+22+32…+102​
Tasya [4]

Answer:

the ans is 168.................??????

7 0
3 years ago
Read 2 more answers
How i can answer this question?
Fantom [35]

Answer:

11n

Step-by-step explanation:

7+4 =11

so then 7n+4n=11n

5 0
3 years ago
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