8: An athlete decides to run the same distance in 1/4th less time that she usually took. By how much percent will she have to increase her average speed?

in used car terms for deciding if the speedo/odometer reading is accurate , it is generally accepted that 12.5- 13K miles per year is average distance
So your reading would indicate that the car has had average use and would be accepted as about right for that year model

A track is 400 m so it would be 105 1/2 laps

Athletics' .........for instance "We know that athletics' benefits are good"

It is awkward grammar though, you would say "the benefits of athletics"

The normal heart rate is really an average heart rate, around 80 beats per minute. Many things can make it go faster or slower, including activity, medication, drugs, exposure to insectisides or mushrooms and others. A slow heart rate is called bradycardia, usually around 60 beats per minute. Sometimes the electrical nodes in the heart which help to make the heart start a new beat quit or work incorectly. In these cases medication or a pacemaker are required. I hope this answers your question.

Add incline. Instead of keeping the treadmill on a flat surface, maintain an incline as you walk, jog or run. This will serve to replicate the wind resistance and terrain variation that you encounter when you run outdoors. Keep an incline of at least 1.5 percent on your treadmill throughout your workout.

2 Increase your speed. If you run at the same speed every time you workout, your body will not be challenged and you may reach a fitness plateau. Up your speed by a quarter-mile per hour every few weeks.

3 Vary your workout time. In order to challenge your body in different ways, variety is key. If you run for half an hour three times a week, opt for a one-hour run for your fourth workout. This will help to condition your body for endurance training, resulting in more calories burned.

4 Use intervals. Interval training can dramatically increase your calorie burn in an average workout. Instead of running at a steady pace for your entire workout, mix in sprints. Jog at a steady pace for two minutes, and then increase your speed to a full sprint for 30 seconds. Return to the steady pace to recover. Your heart rate will rise on your intense sprint intervals and stabilize on your longer recovery periods.

5 Incorporate incline into your interval training. You can use incline in the same manner that you would speed to interval train. Walk or jog at a 5 percent incline for two minutes. Increase the incline to 10 percent for two minutes and then to the 15 percent maximum for one minute. Decrease the incline back to 10 percent for two minutes and finally back to 5 percent for two minutes. Repeat this same pyramid interval a few times.

6 Wear a heart rate monitor. This will monitor how hard you are actually working as well as how many calories you burn in each workout. You can then adjust your speed and incline accordingly to maximize your calorie burn.

7 Drink plenty of water before, during and after your treadmill workout. If you are dehydrated, you won't perform as well as you can. You'll work harder and burn more calories if you're hydrated

Hi nrbjcs101307,
It seems the answer might be 45 m.

battery's bad replace

Average freezers last for several years, usually 10 or more. The compressor should not run all of the time, maybe less than 10 to 20 percent of the time if it is working properly. Not sure what you mean by the bipass, some freezer have a manual defrost, and in this mode it will not cool. Insure the location where you have the freezer allows for ample air circulation, sometimes folks put them in little spaces that prevent air circulation to the condensing/compressor unit and they overheat and do not work well and fail very quickly.