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a_sh-v [17]
3 years ago
12

What fraction is 2quarter and 2 dimes

Mathematics
2 answers:
Katena32 [7]3 years ago
8 0

Answer:

3/5

Step-by-step explanation:

This is because two quarters would equal to 0.5 and two dimes would equal to 0.1. 0.1+0.5=0.6. 0.6=3/5.

Amanda [17]3 years ago
6 0

Answer:

1/2 and 1/5.

Step-by-step explanation:

Two quarters would be 50/100 or 1/2 simplified.

Two dimes would be 20/100 or 1/5 simplified.

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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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3 years ago
5. Suppose a password requires three distinct letters. Find the number of permutations for the three letters in the code if the
Roman55 [17]

Answer:

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This gives us 26*25*24 = 15600 ways of picking a password.

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