Apedicab travels 5 miles to pick up a customer. then, the pedicab travels an average of 12 miles per hour for the entire job. which equation shows that the pedicab traveled a total of 14 miles? 5(14) + h = 12. 5 + 12h = 14 5h + 14 = 12 12(5 + h) = 14 -12 (x + 7) = 60 x = -12 x = -2 x = 2 x = 12 debbie borrows $45, and then pays $5 back each week. she currently owes $20. what will the variable stand for? her total debt how much she has paid back how many weeks have passed her account balance michael has 27 keys, which is 3 times as many as rachel. rachel has 8 more keys than ann. how many keys does ann have? ann has 1 key. ann has 17 keys. ann has 73 keys ann has 89 keys. what is the first step you would take to solve the equation 5x - 12 = -20? divide 5x and -20 by 5. add 20 to both sides. multiply 12 by 1/5 add 12 to both sides.

Airplane speeds are measured in three different ways: (1) indicated speed, (2) true speed, and (3) ground speed. the indicated airspeed is the airspeed given by an instrument called an airspeed indicator. a plane’s indicated airspeed is different from its true airspeed because the indicator is affected by temperature changes and different altitudes of air pressure. the true airspeed is the speed of the airplane relative to the wind. ground speed is the speed of the airplane relative to the ground. for example, a plane flying at a true airspeed of 150 knots into a headwind of 25 knots will have a ground speed of 125 knots. the problems below refer to static and dynamic pressure. static pressure is used when a body is in motion or at rest at a constant speed and direction. dynamic pressure is used when a body in motion changes speed or direction or both. a gauge compares these pressures, giving pilots an indicated airspeed. in problem #s 1 and 2, use the following information. the indicated airspeed s (in knots) of an airplane is given by an airspeed indicator that measures the difference p (in inches of mercury) between the static and dynamic pressures. the relationship between s and p can be modeled by s=136.4p√+4.5. 1. find the differential pressure when the indicated airspeed is 157 knots. 2. find the change in the differential pressure of an airplane that was traveling at 218 knots and slowed down to195 knots. in problem #s 3 and 4, use the following information. the true airspeed t (in knots) of an airplane can be modeled by t=(1+a50,000) ⋅ s, where a is the altitude (in feet) and s is the indicated airspeed (in knots). 3. write the equation for true airspeed t in terms of altitude and differential pressure p. 4. a plane is flying with a true airspeed of 280 knots at an altitude of 20,000 feet. estimate the differential pressure. explain why you think your estimate is correct.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Heather is a cashier. she can ring up 1212 customers in 99 minutes. at this rate, how many minutes does it take her to ring up 44 customers?