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ratelena [41]
3 years ago
15

Vanh is going to the store to purchase mangoes. At Fruitie-Tutie she can purchase 5 mangoes for $1.80. At Fruits-4-Less, she can

purchase 7 mangoes for $2.80. Which is the better buy? Explain your reasoning.
Mathematics
1 answer:
barxatty [35]3 years ago
6 0

frutitie tutie

Step-by-step explanation:

better buy.......

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tankabanditka [31]

Answer: A committee of 5 students can be chosen from a student council of 30 students in 142506 ways.

No , the order in which the members of the committee are chosen is not  important.

Step-by-step explanation:

Given : The total number of students in the council = 30

The number of students needed to be chosen = 5

The order in which the members of the committee are chosen does not matter.

So we Combinations (If order matters then we use permutations.)

The number of combinations of to select r things of n things = ^nC_r=\dfrac{n!}{r!(n-r)!}

So the number of ways a committee of 5 students can be chosen from a student council of 30 students=^{30}C_5=\dfrac{30!}{5!(30-5)!}

=\dfrac{30\times29\times28\times27\times26\times25!}{(120)\times25!}=142506

Therefore , a committee of 5 students can be chosen from a student council of 30 students in 142506 ways.

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Step-by-step explanation:

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