网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
问答题
Room prices are regularly $100, but for each additional room rented by a group, the price is reduced by $3 for each room. For example, 1 room costs $100, 2 rooms cost 2× $97 = $194, 3 rooms cost 3 ×$94 = $282, and so on. What is the total cost of renting 6 rooms?

参考答案

参考解析
解析:
由题干中的例子类推可知租六间房子的房租为6×[100-3×(6-1)] = 510。
更多 “问答题Room prices are regularly $100, but for each additional room rented by a group, the price is reduced by $3 for each room. For example, 1 room costs $100, 2 rooms cost 2× $97 = $194, 3 rooms cost 3 ×$94 = $282, and so on. What is the total cost of renting 6 rooms?” 相关考题
考题 ________, its very tidy. A.As her room is smallB.Small as her room isC.As small her room isD.Small as her room

考题 - Where shall we have the meeting -() A、In the first conference room.B、The first conference room is spacious.C、The first conference room isn’t good.

考题 The two boys ran out of the room separately, ( ) carrying a bag. A、everyB、allC、bothD、each

考题 The additional mark______in the Classification Certificate for Machinery represents the propulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.A.BRCB.MCCC.AUT-0D.AUT-l

考题 SOLAS requires a lifesaving training manual be provided in each crew cabin or in the ______.A.bridgeB.engineering control stationC.recreation and messroomsD.fire control room

考题 Where are self-closing doors required on a ship ________.A.In the galleyB.In each stair towerC.To each sleeping roomD.To the engine room

考题 ______ is not a proper form for Muster lists.A.A separate card given to each crew memberB.A separate instruction booklet given to each crew memberC.A card fixed in each cabin with instructions for the occupant of the cabinD.A well prepared notice posted on water-tight doors and/or in chart-room

考题 What would you say to the hotel receptionist to get a double room?__________ A.Rent us a double room. B.Book us a double room. C.We'd like to have a double room. D.Let's have a double room.

考题 Each man and woman must sign ______ full names before entering the examination room.A.his B.her C.their D.one’s

考题 At the University of Kansas art museum,scientists tested the effect of different colored walls on two groups of visitors to an exhibit of paintings.For the first group the room was painted white;for the second,dark brown.Movement of each group was followed by an electrical equipment under the carpet.The experiment showed that those who entered the dark brown walked more quickly,covered more area,and spent less time in the room than people in the white one.Dark brown made people more active,but the activity ended sooner.Not only the choice of colors but also the general appearance of a room affects those inside.Another experiment presented people with photographs of faces whose energy was to be commented.Three groups of people were used;each was shown the same photos,but each group was in an ordinary room—a nice office.The third was in a tastefully designed living room with carpeting.Results showed that the people in the beautiful room tend to give higher marks to the faces than those in the ugly room did.Other studies that students do better on tests taken in comfortable room than in ordinary-looking or ugly rooms. Which of the following is the best expression of the main idea of this passage A.People in beautiful rooms tend to give higher marks to photos of faces than people in ugly rooms B.The color and general appearance of a room have a deeper effect on the behavior of the people in it C.The University of Kansas has studied the effects of the color of room on people’s behavior D.Beautifully furnished,light-coloured rooms make people more comfortable than ugly,dark rooms

考题 A:Where shall we have the meeting? B:()AThe first conference room is spaciousBThe first conference room isn't goodCIn the first conference room

考题 引水员的房间在驾驶台隔壁。()A、The pilot room is next to the chart room.B、The pilot room is next to the wheelhouse .C、The pilot room is next to the captain’s cabin.

考题 A:Where shall we have the meeting? B:()A、The first conference room is spaciousB、The first conference room isn't goodC、In the first conference room

考题 引航员的房间在驾驶台隔壁。()A、The pilot room is next to the chart room.B、The pilot room is next to the wheelhouse .C、The pilot room next to the captain’s cabin.D、The pilot room next to the wheelhouse .

考题 Which of the following can conserve energy in a server room?()A、Sealing all potential cold air leaksB、Installing additional cooling fansC、Setting the temperature lowerD、Replacing the UPS with a generator

考题 为了方便客人用餐,可将房内用餐菜单挂在门口,让客人填写,房内用餐菜单,译为()。A、menuB、room service menuC、room serviceD、room menu

考题 单选题If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm ().A at each control stationB in the chief engineer’s quartersC in the captains quartersD All of the above are correct

考题 单选题引航员的房间在驾驶台隔壁。()A The pilot room is next to the chart room.B The pilot room is next to the wheelhouse .C The pilot room next to the captain’s cabin.D The pilot room next to the wheelhouse .

考题 填空题The ratio of men to women in a room is 4: 5. If the room contains three more women than men, how many women are in the room?____

考题 单选题The Certificate of Inspection on a passenger vessel of over 100 gross tons must be posted ().A in the Master's officeB on the bridgeC in a conspicuous place where observation by the passengers is likelyD in the passengers' dining room or,where there is no dining room,in the lounge area

考题 单选题What would you say to the hotel receptionist to get a double room?A Rent us a double room.B Book us a double room.C We'd like to have a double room.D Let 's have a double room.

考题 单选题The additional mark () in the Classification Certificate for Machinery represents the propulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.A BRCB MCCC AUT-0D AUT-1

考题 单选题引水员的房间在驾驶台隔壁。()A The pilot room is next to the chart room.B The pilot room is next to the wheelhouse .C The pilot room is next to the captain’s cabin.

考题 单选题In order to release CO2 to the machinery spaces from a fixed fire extinguishing system, you must().A actuate an alarm and open the engine room control valveB actuate an alarm and open the engine room CO2 releasing valveC open the engine room control valve and shut off engine room ventilation fansD open the engine room control valve and then the CO2 releasing valve

考题 单选题() in the engine room, the motormen could hardly talk each other.A To workB WorkingC Having workedD worked

考题 单选题SOLAS requires a lifesaving training manual be provided in each crew cabin or in the().A bridgeB engineering control stationC recreation and messroomsD fire control room

考题 单选题The ()is next to the chart room.A engine roomB cook roomC saloonD pilot room