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Chapter 7: Q. 382 (page 737)
Simplify
Simplified answer is
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Boyle鈥檚 law states that if the temperature of a gas stays constant, then the pressure varies inversely to the volume of the gas. Braydon, a scuba diver, has a tank that holds 6 liters of air under a pressure of 220 psi.
a) Write the equation that relates pressure to volume.
b) If the pressure increases to 330 psi, how much air can Braydon鈥檚 tank hold?
Matthew jogged to his friend鈥檚 house 12 miles away and then got a ride back home. It took him 2 hours longer to jog there than ride back. His jogging rate was 25 mph slower than the rate when he was riding. What was his jogging rate?
Curtis was training for a triathlon. He ran kilometers and biked kilometers in a total of hours. His running speed was kilometers per hour less than his biking speed.
What was his running speed?
Pediatricians prescribe 5 milliliters (ml) of acetaminophen for every 25 pounds of a child鈥檚 weight. How many milliliters of acetaminophen will the doctor prescribe for Emilia, who weighs 60 pounds?
Hudson travels 1080 miles in a jet and then 240 miles by car to get to a business meeting. The jet goes 300 mph faster than the rate of the car, and the car ride takes 1 hour longer than the jet. What is the speed of the car?
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