Exam 9: Metric System Measurement

A medical laboratory runs blood tests seven days a week and uses an average of 400 ml of a diluting agent per day. How many liters of this diluting agent are used in a month of 20 days?

Express 120 km/h in miles per hour. Round to the nearest hundredth.

A patient's blood pressure is defined to be the pressure exerted by the blood upon the walls of the blood vessels, especially the arteries, usually measured by means of a sphygmomanometer. Blood pressure is normally expressed as a fraction in millimeters of mercury. The numerator of the fraction is the maximum pressure when the heart contracts, forcing blood out of the heart. The denominator is the minimum pressure when the heart is filling with blood. The suggested optimal blood pressure of 130/80 is the ratio of 130 mm of mercury to 80 mm of mercury. Express these measurements in cm.

Find the number of gallons in 5 L of antifreeze. Round to the nearest hundredth.

Convert 23 g 178 mg to g.

Gary is planning a 3-day backpacking trip and decides to hike an average of 4 h each day. Hiking requires an extra 330 Calories per hour. How many pounds will Gary lose during the trip if he consumes an extra 900 Calories each day? (3500 Calories are equivalent to 1 lb.)

A flu vaccine is being given for the coming winter season. A medical corporation buys 12.8 L of flu vaccine. How many patients can be immunized if each person requires 4 cm3?

Moderately active people need 34 Calories per pound of body weight to maintain their weight. How many Calories should a 140-pound, moderately active person consume per day to maintain that weight?

At noon, $\frac { 2 } { 5 }$ of a 1-liter bag of normal saline has been infused. If the infusion rate for this IV is 120 ml/h, what time will this infusion be complete?

Find the weight in pounds of a 155-kilogram person. Round to the nearest hundredth.

Twenty rivets are used to fasten two steel plates together. The plates are 3.7 m long, and the rivets are equally spaced, with a rivet at each end. Find the distance between the rivets. Round to the nearest tenth of a centimeter.

A 21-inch TV set is rated at 75W. The TV is used an average of 31/2 h each day for a week. How many kilowatt-hours of energy are used during the week? Round your answer to the nearest tenth.

Red blood cells carry oxygen from your lungs to the rest of your body. Normal red blood cell levels (RBC) for men are 4.5 million to 6.2 million cells/μl. If an RBC is reported to be 5.3 million cells/μl, how many red blood cells are in 1 ml of this blood?

A chemistry experiment requires 21 ml of an acid solution. How many liters of acid should be ordered when 4 classes of 32 students each are going to perform the experiment? (The acid must be ordered by the whole liter.)

Convert 6.13 L to cm3.

Convert 35 mm to cm.

Each teaspoon (t) of an oral suspension of ibuprofen contains 0.7 g of medication. If a patient takes 2 t of this medication three times day for two days, how many milligrams of ibuprofen has the patient received?

Find the weight in kilograms of a 160-pound person. Round to the nearest hundredth.

For a healthful diet, it is recommended that 60% of the daily intake of Calories come from carbohydrates. Find the daily intake of Calories from carbohydrates that is appropriate if you want to limit your Calorie intake to 1400 Calories.

A doctor prescribes 120 ml of cough syrup per day for a patient. The total daily prescribed dosage is to be divided into four equal doses. How many teaspoons of cough syrup should be given to the patient in a single dose?