MATHEMATICS HIGH SCHOOL

Andy,bette,cate,dustin,erik,and franco are rock collectors.Each collector has chosen some rocks from his ir her collection to trade.Each collector is going to trade with every other collector.How many different pairs of collectors will trade rocks?

Answers

Answer 1
Answer:

Answer: 30 different pairs of collectors will trade rocks

Step-by-step explanation:

Andy,bette,cate,dustin,erik,and franco are six in number

Since each collector is going to trade with every other, the different way of trade will be 6 permutation 2

6P2 = 6!/(6-2)! = (6×5×4!)/4! = 6×5 = 30 ways

Therefore 30 different pairs of collectors will trade rocks

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Increase 28 by 7 percent

Answers

7 percent... 7 percent of what?

AnswerP 7 % of 28!

so we need to know what 7% of 28 is:

(7*28)/(100) =1.96.

After the increase:

28+1.96=29.96

How do you write 21.035 in expanded form and written form

Answers

Expanded form:

21,035*10^-3

In the library there are 200 books. 58 of them are non-fiction. What percentage of the books are non-fiction?

Answers

58/200 is 29/100 which is 29%.
29% = Non-Fiction

what percent of a) Rs 80 is Rs 20 ? please give answer step by step and clearly please it's urgent ​

Answers

Answer:

16%

Step-by-step explanation:

80/100x  20/1 =  1600/100 cut0  n d16%a
i think its 16 percent

78 divided by 190 

steps

Answers

78 x 100 = 7800 

How many times does 190 go into 780? 
≈ 4....190 x 4 = 760 

780 - 760 = 20...bring down the extra 0 to make it 200. 

How many times does 190 go into 200? 
≈ 1...subtract 190 from 200 to get a remainder of 10 

190 ÷ 7800 ≈ 41

Hope I Helped You!!! :-)

Have A Good Day!!!

Marge has saved $350 toward the cost of her vacation. The vacation will cost $1,750. What percent of the cost of the vacation has Marge saved?

Answers

350x5=1750
100/5=20
converts to 20%

Final answer:

Marge has saved 20% of the total cost of her vacation.

Explanation:

Marge's vacation savings can be calculated as a percentage of the total cost, using the formula: (Amount Saved / Total Cost) * 100. In this case, with a total vacation cost of $1,750 and Marge having saved $350, the calculation is ($350 / $1,750) * 100. When computed, it reveals that Marge has successfully saved 20% of the total vacation expense. This means that she has allocated a fifth of the overall cost, demonstrating a commendable financial preparation for her upcoming getaway. Such conscientious savings practices contribute to a more relaxed and enjoyable vacation experience, as Marge has set aside a significant portion of the required funds.

Learn more about Percentage Calculation here:

brainly.com/question/32197511

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