Concept explainers
Antifreeze is a compound added to water to reduce the freezing point of a mixture. In extreme cold (less than
Want to see the full answer?
Check out a sample textbook solutionChapter R Solutions
GEN CMB LL PRECALC ALEKS 360
Additional Math Textbook Solutions
Basic Business Statistics, Student Value Edition
University Calculus: Early Transcendentals (4th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Elementary Statistics: Picturing the World (7th Edition)
Elementary Statistics (13th Edition)
Algebra and Trigonometry (6th Edition)
- The kinetic energy E of an object varies jointly with the object’s mass m and the square of the object’s velocity v . An object with a mass of 50 kilograms traveling at 16 meters per second has a kinetic energy of 6400 joules. What is the kinetic energy of an object with a mass of 70 kilograms traveling at 20 meters per second?arrow_forwardFind the constant of proportionality. y is directly proportional to x. If x=30, then y=15.arrow_forwardFind the intensities of earthquakes whose magnitudes are (a) R=6.0 and (b) R=7.9.arrow_forward
- A patient's glucose result is outside of the range of the analyzer, so the sample has to be diluted. 50 microliters of serum is added to 100 microliters of diluent and the diluted sample is re-analyzed. The glucose value of the diluted sample is 80 mg/dL. What is the glucose value in the original sample?arrow_forwardA tank contains 200 gallons of fresh water. Brine containing 2 lbs/gal of salt enters the tank at 4 gpm and the mixture, kept uniform by stirring, runs out of at 3 gpm. Find the amount of salt in the tank after 30 minutes.arrow_forwardA health clinic uses a solution of bleach to sterilize petri dishes in which cultures are grown. The sterilization tank contains 60 gal of a solution of 4% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 6% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level? gal?arrow_forward
- A pharmacist is combining two products that contain the same active pharmaceutical ingredient (API). These two products are 15 g of a 6 % w/w ointment and 90 g of a 1.5 % w/w ointment. What will be the final concentration of the mixture?Round the answer to one decimal place. The answer should be in % w/w.arrow_forwardUPVOTE WILL BE GIVEN. PLESE WRITE THE COMPLETE SOLUTIONS. NO LONG EXPLANATION NEEDED. In an oil refinery, a storage tank contains 2,000 gal of gasoline that initially has 100 1b of an additive dissolved in it. In preparation for cold season, gasoline containing 2 lb of additive per gallon is pumped into the tank at the rate of 40 gal/min. The well-mixed solution is pumped out at the same rate. Find the concentration of additive in the tank after 30 min.?arrow_forwardA 100-gal tank is used to hold 5 lb of salt dissolved in 50 gallons of water. A solution containing 0.2 lb of salt per gallon is allowed to flow into the tank at the rate of 2 gallons per minute. The solution kept uniform by stirring flows out at a rate of 1 gallon per minute. Determine how long it will take for the amount of salt in the tank to reach 10 lb. a. 18.3 min b. 15.6 min c. 22.8 min d. 17.5 minarrow_forward
- A tank containing chocolate milk initially contains a mixture of 460 gallons of milk and 40 gallons of chocolate syrup. Milk is added to the tank at the rate of 8 gallons per minute and syrup is added at a rate of 2 gallons per minute. At the same time, chocolate milk is withdrawn at a rate of 10 gallons per minute. Assuming perfect mixing of milk and syrup, determine how much syrup will be in the tank after 10 minutes. O A. 55.50 gal. O B. None of the choices O C. 50.88 gal. O D. 60.23 gal. O E. 23.90 gal.arrow_forwardThe radiator in a car is filled with a solution of 55% antifreeze and 45% water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is 3.3 L, how much coolant should be drained and replaced with water to reduce the antifreeze concentration to the recommended level?arrow_forwardA water tank that initially contains 140 L of solution in which 20 g of salt was dissolved. A solution with a salt concentration of 4 g/L is added at a rate of 6 L/min. The solution is mixed well and was drained from the tank at a rate of 4 L/min. Find the answer for the following question. 1) Find the concentration of the solution in the tank after 30 minutes.arrow_forward
- Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal LittellCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning