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zepelin [54]
3 years ago
10

Is anyone good with permutations? I can’t quite get the answer right for 4 b)

Mathematics
1 answer:
ki77a [65]3 years ago
5 0

Answer:  \bold{4b)\quad _{10}C_2=45\qquad\qquad 5b)\quad _4C_1\ \cdot\  _7C_3=140}

<u>Step-by-step explanation:</u>

4b) 2 members are pre-selected for the subcommittee, so there are 2 spots left and 10 people remaining to choose from.  _{10}C_2=\large\boxed{45}

5b) 1 of the guards is pre-selected for the team, so there is only 1 spot left and 4 people remaining to choose from. <em>There are still 3 spots for the forwards out of 7 people.</em>     _4C_1\ \cdot\  _7C_3=4\times 35=\large\boxed{140}

<em>Note: Your answers are correct for 4a and 5a</em>

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olya-2409 [2.1K]

Answer:

4 hours

Step-by-step explanation:

Alright, so Steve has $50 in his pocket. He wants to rent a bike for the maximum amount of time possible with his money. It costs him $12 per hour to rent a bike.

To solve this problem use simple arithmetic:

($50/$12=4.16)

So Steve is able to rent the bike for 4.16 hours, but we aren't done yet. Steve cannot purchase 16% of an hour, he can only buy FULL hours, so with his $50 , the maximum amount of time he can buy is 4 hours!

Let me know if you need any further explanations :)

7 0
2 years ago
Which of the following shows as a mixed number and as an improper fraction?
Marysya12 [62]

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6 0
3 years ago
What is the weight of one half of two thirds of a sack of rice? The sack of rice weighs 99 kilograms.
Eddi Din [679]
First you need to find what 2/3 equals
to do this, take 99 divided by 3
99/3=33

if 1/3 equals 33, two thirds would be 33x2
33x2=66

now, you need to find 1/2 of 66.  this can be done 2 different ways

1.    66 divided by 2    -    66/2=33
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6 0
3 years ago
Read 2 more answers
You're planning to visit with seven clients today and you estimate that at most each client will require 3/4 of an hour of your
erma4kov [3.2K]

Answer:

45 mins

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5 0
3 years ago
The sum of two numbers is 1633 and their difference is 35 . Find the two numbers.
devlian [24]

Answer:

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Step-by-step explanation:

x+y=1633

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2x= 1668

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Hope this helps!

5 0
2 years ago
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