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The store is having the sale on 200 DVD movies, some movies are being sold for $10 and some are being sold for $12. If store made $2200 after selling all 200 DVDs, find how many $12 DVDs were sold?
If you randomly sample ten marbles, one at a time with replacement from bowl, find probability you will choose nine marbles with pluses and one with a minus?
Solve homogenous equation system: 3x-8y+z=0 and -20x-5y-6z=0 by form aug matrix for solutions of homo system then add solutions from first part above to second part
Determine time interval (0, t) on which both funds are equivalent and determine equivalent level force of interest? on the interval period of time.
Ariana took 2 hour longer to drive 360mi on first day of the trip than she took to drive 270mi on second day. If her speed was same on both days, determine driving time each day?
Runner B is originally 5.0 km east of flagpole and is running with the constant velocity of 8.0 km/h due west. Find the distance of two runners from flagpole when the paths cross?
The equation h= -16t^2 + 112t provides height of the arrow, shot upward from ground with the initial velocity of 112ft/s, where t is time after arrow leaves ground.
The paddleboat can travel 60 miles upstream in same time it takes to travel 140 miles downstream. If current of river is 10 miles per hour, compute speed of paddleboat in still water?
One of planes travels at the speed which is 150 mi/h faster than other. At 1:00 p.m., lanes are 1900 miles apart. Determine speed of faster plane.
Trip is total of 3 hours long. How lonng must pilot fly before shutting down 1 engine to go the total distance of 2352 in three hours.
Amy's average speed is five miles per hour faster than Kris's. How fast is Kris's average speed if they pass each other in six hours?
His average speed by motor was 4 kph faster than average speed while rowing banca. If complete trip took five and a half hours, find his average speed while rowing?
3 tickets in Switzerland plus 2 tickets in Japan would cost $75.93. How much average movie ticket cost in each of the countries Japan ___ and Switzerland______?
Determine highest point does gum wad reach and after how much time? After how many seconds will gum wad hit ground?
Find maximum number of tokens that original leader (leader 1) gets to keep across all subgame perfect equilibria of the game? Determine maximum number of tokens leader four gains in all subgame perf
They will bike for eight hours, then hike for four hours. If they can bike on average 10mph faster than they can hike and if they will cover the total of 122 miles, how fast can Abigail and friends
Determine unique pure-strategy Nash equilibrium for the game. If norm were different, so that the bribe of 15 were also acceptable, is there pure-strategy Nash equilibrium?
Evaluate derivative of sin(x) at x=1 using divided difference formula (sin(1+h) - sin(1))/h, for h=0.1,0.01,0.001 and 0.0001. Utilize base 10 floating-point arithmetic with 4 digits.
Let the function f(x) = tx3 + ux2 + vx +w, where t = 1, u = -3, v = -130, and w = 150. The equation is utilized in analytic chemistry, but for the purposes is just the nice polynomial.
How many trips should each truck make to remove all material? Let carefully uncertainty in measured values. Compute both best and worst case possibilities.
He drives fifty miles per hour to catch up with her. If Bart is delayed 30 minutes with the flat tire, at what time will he catch up with Brooke?
Linda went east at 20 miles per hour on the bicycle at 9am. 3 hours later Shana went west from the same place walking at six miles per hour. Find time when they were 164 miles apart?
At 6:00 p.m., two trains were 490 miles apart. Determine rate of each train if northbound train traveled 15 miles per hour faster than southbound train.
The river boat can head 340 miles up-river in 19 hours, but return trip takes only 14 hours. Determine current of river and determine speed of ship in still water to nearest tenth of the mph.
The plane took one hour longer to travel 560 miles on first portion of the flight than it took to fly 480 miles on second portion. If speed was same for every portion, find flying time for second p