Perform the required calculations for each of the following items. Round your answers to the nearest 0.1%.

Perform the required calculations for each of the following items. Round your answers to the nearest 0.1%.

25. A class had 30 pupils at the beginning of this school term, but now has 5 more pupils. What is the percent of increase?

26. Eggs were $2.05 per dozen on January 1 and $2.00 per dozen on February 1. What percent did the price decrease during January?

27. During November the price of each share of a certain stock declined from $196 to $132. What was the rate of decline for that month?

28. By careful reorganization, a company was able to reduce the cost of operation from $21,840 per month to $17,190 per month. By what percent was the cost of operation reduced?

29. The circulation of a city library for September was 157,928 books; for October, 184,211 books. What was the percent of gain for October over September?

Question

Mathematics

Jayson Clements

16 September, 17:35

Perform the required calculations for each of the following items. Round your answers to the nearest 0.1%.

Perform the required calculations for each of the following items. Round your answers to the nearest 0.1%.

25. A class had 30 pupils at the beginning of this school term, but now has 5 more pupils. What is the percent of increase?

26. Eggs were $2.05 per dozen on January 1 and $2.00 per dozen on February 1. What percent did the price decrease during January?

27. During November the price of each share of a certain stock declined from $196 to $132. What was the rate of decline for that month?

28. By careful reorganization, a company was able to reduce the cost of operation from $21,840 per month to $17,190 per month. By what percent was the cost of operation reduced?

29. The circulation of a city library for September was 157,928 books; for October, 184,211 books. What was the percent of gain for October over September?

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Answers (1)

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Bully · Answer 1

25. 16.7%

26. 2.4%

27.32.7%

28. 21.3%

29. 16.6%

Step-by-step explanation:

25.

Initial number of students = 30

Additional students=5

Current number of students = 30+5=35

percent increase = increase/initial number * 100

% increase = 5/30 * 100 = 50/3 = 16.7%

26.

Initial January price was $2.05 per dozen

In February the price changed to $2.00 per dozen

Decrease in price = $2.05-$2.00 = $0.05

% decrease in price = 0.05/2.05 * 100 = 2.4%

27.

Original price of share = $196

New price of share=$132

Decrease in value of share = $64

%decrease = 64/196 * 100 = 32.7%

28.

Original cost of operation per month was=$21840

New cost of operation per month is = $17190

Decrease in cost of operation is = $21840 - $17190 = $4650

% decrease in cost of operation = 4650/21840 * 100 = 21.3%

29.

Circulation in September was = 157,928

Circulation in October is = 184,211

Increase in circulation is = 184211-157928=26283

% increase in circulation = 26283/157928*100=16.6%