Question 1

Solve the problem.
-Andy left a 15% tip for a meal that cost $46. What was the total cost of the meal including the tip?
A) $52.90
B) $39.10
C) $6.90
D) $59.80

Accepted Answer

The tip amount is 15% of $46, which is $6.90. Adding the tip to the original cost, $46 + $6.90 = $52.90.

Question 2

Solve the problem. Round to the nearest tenth of a percent.
-4.1 is what percent of 23.2?
A) 17.7%
B) 565.9%
C) 5.7%
D) 0.2%

Accepted Answer

To find what percent 4.1 is of 23.2, divide 4.1 by 23.2 and multiply by 100. $ \frac{4.1}{23.2} \times 100 = 17.6724\% $, which rounds to 17.7%.

Question 3

Solve the problem. Round to the nearest tenth of a percent.
-What percent of 2746 is 22?
A) 18.0%
B) 0.8%
C) 12,481.8%
D) 8.0%

Accepted Answer

To find what percent 22 is of 2746, use the formula (part/whole)*100 = percentage. So, (22/2746)*100 ≈ 0.8%.

Question 4

Answer the question.
-In a school survey, students showed these preferences for instructional materials. Answer the question.  About how many students would you expect to prefer computers in a school of 700 students?
A) About 140 students
B) About 126 students
C) About 252 students
D) About 36 students

Accepted Answer

The answer of Answer the question.
-In a school survey, students...

Question 5

Solve the problem. Round to the nearest tenth of a percent.
-What percent of 29 is 29?
A) 1%
B) 0%
C) 100%
D) 200%

Accepted Answer

29 is 100% of 29 because any number is 100% of itself.

Question 6

Solve the problem. Round to the nearest tenth of a percent.
-What percent of 110 is 55?
A) 50%
B) 0%
C) 200%
D) 2%

Accepted Answer

To find what percent 55 is of 110, divide 55 by 110 and multiply by 100. $ \frac{55}{110} \times 100 = 50\% $.

Question 7

Solve the problem.
-During one year, the Cheung's real estate bill included $318 for county services. Of this amount, $44 went to the highway department. What percent did the county highway department receive? (Round answer to two
Decimal places.)
A) 86.16%
B) 4.40%
C) 13.52%
D) 13.84%

Accepted Answer

The answer of Solve the problem.
-During one year, the Cheung's...

Question 8

Answer the question.
-In a school survey, students showed these preferences for instructional materials. Answer the question.  About how many students would you expect to prefer written materials in a school of 900 students?
A) About 9 students
B) About 81 students
C) About 162 students
D) About 324 students

Accepted Answer

The answer of Answer the question.
-In a school survey, students...

Question 9

Solve the problem.
-Sarah left a 15% tip of $6.15 for a meal. What was the cost of the meal before the tip?
A) $47.15
B) $12.30
C) $41.00
D) $0.92

Accepted Answer

The tip is 15% of the cost of the meal, so to find the original cost, divide the tip amount by 15% (or 0.15): $6.15 / 0.15 = $41.00.

Question 10

Solve the problem. Round to the nearest tenth of a percent.
-What percent of 109 is 16.9?
A) 0.1%
B) 0.2%
C) 15.5%
D) 645.0%

Accepted Answer

To find what percent 16.9 is of 109, use the formula (part/whole)*100 = percentage. So, (16.9/109)*100 = 15.5%.

Question 11

Solve the problem.
-During one year, the Green's real estate bill included $303 for city services. The fire department received 14% of that amount. How much money went to the fire department?
A) $86.00
B) $4.24
C) $22.42
D) $42.42

Accepted Answer

To find the amount that went to the fire department, calculate 14% of $303. This is done by multiplying 303 by 0.14, which equals $42.42.

Question 12

Solve the problem. Round to the nearest tenth of a percent.
-What percent of 7 is 0.04?
A) 57.1%
B) 175.0%
C) 0.6%
D) 5.7%

Accepted Answer

To find what percent 0.04 is of 7, use the formula: (part/whole) * 100. So, (0.04/7) * 100 = 0.5714%, which rounds to 0.6%.

Question 13

Solve the problem.
-On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 32 questions correct. What was the percent of increase?
A) 72%
B) 21.9%
C) 28%
D) 7%

Accepted Answer

The percent increase is calculated by the formula: [(new value - old value) / old value] * 100. Here, it is [(32 - 25) / 25] * 100 = 28%.

Question 14

Solve the problem.
-During one year, the Schmidt's real estate bill included $214 for miscellaneous services. Of this amount, 41% went to the library fund. How much money did the library receive?
A) $87.74
B) $80.84
C) $67.74
D) $66.34

Accepted Answer

To find how much money the library received, multiply the total amount for miscellaneous services by the percentage that went to the library fund: $214 * 41% = $87.74.

Question 15

Solve the problem.
-The parking lot at a grocery store has 80 cars in it. 25% of the cars are blue. How many cars are blue?
A) 200 cars
B) 320 cars
C) 20 cars
D) 32 cars

Accepted Answer

25% of 80 cars is calculated as (25/100) * 80 = 20 cars.

Question 16

Solve the problem.
-Jennifer's annual salary increased from $20,000 to $44,000 over the last five years. Find the percent increase in her salary during this time period. Round to the nearest tenth of a percent.
A) 54.5%
B) 12.0%
C) 1.2%
D) 120.0%

Accepted Answer

The percent increase is calculated by the formula [(New Salary - Old Salary) / Old Salary] * 100. So, [(44,000 - 20,000) / 20,000] * 100 = 120%.

Question 17

Solve the problem. Round to the nearest tenth of a percent.
-56.0 is what percent of 7?
A) 1.3%
B) 12.5%
C) 8000.0%
D) 800.0%

Accepted Answer

The answer of Solve the problem. Round to the nearest...

Question 18

Solve the problem.
-A chemical solution contains 8% salt. How much salt is in 3.5 mL of solution?
A) 2.8 mL
B) 4.375 mL
C) 0.28 mL
D) 43.75 mL

Accepted Answer

To find the amount of salt in 3.5 mL of solution, multiply the total volume by the percentage of salt (expressed as a decimal). So, $3.5 \times 0.08 = 0.28$ mL.

Question 19

Solve the problem. Round to the nearest tenth of a percent.
-What percent of 61 is 574?
A) 94.1%
B) 0.1%
C) 941.0%
D) 1.1%

Accepted Answer

To find what percent 574 is of 61, use the formula (part/whole)*100 = percentage. So, (574/61)*100 = 941.0%.

Question 20

Solve the problem.
-During one year, the Larson's real estate bill included $429 for local schools. Of this amount, $210 went to the high school district. What percent did the Larsons pay to the high school district? (Round answer to two decimal
Places.)
A) 48.95%
B) 48.72%
C) 51.05%
D) 21.00%

Accepted Answer

To find the percentage the Larsons paid to the high school district, divide the amount paid to the high school district ($210) by the total amount paid for local schools ($429) and multiply by 100. $ \frac{210}{429} \times 100 \approx 48.95\%$.

Quiz 3: Solving Equations and Inequalities

Solve the problem. -Andy left a 15% tip for a meal that cost $46. What was the total cost of the meal including the tip?

Solve the problem. Round to the nearest tenth of a percent. -4.1 is what percent of 23.2?

Solve the problem. Round to the nearest tenth of a percent. -What percent of 2746 is 22?

Answer the question. -In a school survey, students showed these preferences for instructional materials. Answer the question. About how many students would you expect to prefer computers in a school of 700 students?

Solve the problem. Round to the nearest tenth of a percent. -What percent of 29 is 29?

Solve the problem. Round to the nearest tenth of a percent. -What percent of 110 is 55?

Solve the problem. -During one year, the Cheung's real estate bill included $318 for county services. Of this amount, $44 went to the highway department. What percent did the county highway department receive? (Round answer to two Decimal places.)

Answer the question. -In a school survey, students showed these preferences for instructional materials. Answer the question. About how many students would you expect to prefer written materials in a school of 900 students?

Solve the problem. -Sarah left a 15% tip of $6.15 for a meal. What was the cost of the meal before the tip?

Solve the problem. Round to the nearest tenth of a percent. -What percent of 109 is 16.9?

Solve the problem. -During one year, the Green's real estate bill included $303 for city services. The fire department received 14% of that amount. How much money went to the fire department?

Solve the problem. Round to the nearest tenth of a percent. -What percent of 7 is 0.04?

Solve the problem. -On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 32 questions correct. What was the percent of increase?

Solve the problem. -During one year, the Schmidt's real estate bill included $214 for miscellaneous services. Of this amount, 41% went to the library fund. How much money did the library receive?

Solve the problem. -The parking lot at a grocery store has 80 cars in it. 25% of the cars are blue. How many cars are blue?

Solve the problem. -Jennifer's annual salary increased from $20,000 to $44,000 over the last five years. Find the percent increase in her salary during this time period. Round to the nearest tenth of a percent.

Solve the problem. Round to the nearest tenth of a percent. -56.0 is what percent of 7?

Solve the problem. -A chemical solution contains 8% salt. How much salt is in 3.5 mL of solution?

Solve the problem. Round to the nearest tenth of a percent. -What percent of 61 is 574?

Solve the problem. -During one year, the Larson's real estate bill included $429 for local schools. Of this amount, $210 went to the high school district. What percent did the Larsons pay to the high school district? (Round answer to two decimal Places.)