Exam 5: Percents

Among Caucasians, the American Red Cross lists the following blood types for the U.S. population: 31 $\%$ have O+, 8 $\%$ have O-, 32 $\%$ have A+, 9 $\%$ have A-, 7 $\%$ have B+, 2 $\%$ have B-, and 2 $\%$ have AB+ (Source: http://www.redcrossblood. org/learn-about-blood/blood-types). Based on these percents, what percent of the U.S. population have blood type AB-?

Write $3 \frac { 5 } { 6 }$ as a percent. Write the remainder (if there is a remainder) in fractional form.

Write $\frac { 3 } { 7 }$ as a percent. Round to the nearest tenth of a percent, if necessary.

What is $11 \frac { 1 } { 9 }$ $\%$ of 1620?

If a patient receives 515 milliliters of a 6 $\%$ dextrose solution in an IV, how many grams of dextrose does the patient receive when the infusion is complete?

A commonly used artificial hip joint replacement consists of a cobalt-chrome alloy combination. The cobalt-chrome replacement consists of 34 $\%$ cobalt and 19 $\%$ chrome with the balance made up of a mix of other metals. If the hip joint replacement weighs 18 ounces, how many ounces of cobalt and chrome are in the replacement? Round Your answer to the nearest tenth.

A group of consumers was asked to taste two cough syrups and rate the one with the best flavor. The results show that of 295 people, 160 favored Cough Syrup A. What percent of those surveyed favored Cough Syrup B?

During a quality control test, The Nail Place found that 10 nail guns were defective. This amount was 0.5 $\%$ of the nail guns tested. a) How many nail guns were tested? b) How many nail guns tested were not defective?

Write $\frac { 18 } { 25 }$ as a percent.

Write 60 $\%$ as a fraction and as a decimal.

What is 0.45 $\%$ of 603? Round your answer to the nearest hundredth.

A dilution ratio can indicate the concentration of a solution and many times is expressed as a percent. What is the percent concentration of a solution having a dilution ratio of $\frac { 1 } { 40 }$ ?

Dieticians recommend that a person get a maximum of 39 $\%$ of their calories each day from fat. Based on an 1815-calorie daily diet, what is the maximum number of calories that should come from fat? Round to the nearest whole number.

What is 275 $\%$ of 74?

According to USDA dietary guidelines for Americans, diets that receive fewer than 37 $\%$ of calories from carbohydrates are difficult to adhere to and are not recommended for weight loss. If you are on a 2000-calorie diet, what is the minimum number of calories you should get daily from carbohydrates?

Suppose that 68 billion pounds of a product were produced in the United States last year, of which 12 billion pounds were wasted. What percent of production was wasted? Round to the nearest tenth of a percent.

Although surgical complications of tonsillectomies are rare, last year, 19 out of Dr. Juarez's 530 tonsillectomy patients had complications after surgery. What percent of Dr. Juarez's patients did not have complications after surgery?Round to the nearest tenth of a percent.

Write 165 $\%$ as a fraction and as a decimal.

Write 9.25 $\%$ as a decimal.

Write 8.85 as a percent.