An antiques dealer bought c antique chairs for a total of x dollars. The dealer

游客2024-01-12 52

问题 An antiques dealer bought c antique chairs for a total of x dollars. The dealer sold each chair for y dollars.
(a)Write an algebraic expression for the profit, P, earned from buying and selling the chairs.
(b)Write an algebraic expression for the profit per chair. [br]

选项

答案 P = cy - x

解析

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An antiques dealer bought c antique chairs for a total of x dollars. The dealer

Astorebought5dozenlampsat＄30perdozenandsoldthemallat＄15perlamp．

Inanauditorium，360chairsaretobesetupinarectangulararrangementwithX

OutofAmerica’sfascinationwithallthingsantiquehavegrownamarketforbyg

Ms.Rogersboughtanelectricrangeontheinstallmentplan.Thecashpriceoft

Ifppencilscostccents,howmanycanbeboughtforddollars?[img]2012q1/ct_e

In1980,thecostofppoundsofpotatoeswasddollars.In1990,thecostof2p

LastyearLeoboughttwopaintings.Thisyearhesoldthemfor$2000each.Onon

Acardealerreceivedashipmentofcars,halfofwhichwereblack,withtherem

Anantiquesdealerboughtcantiquechairsforatotalofxdollars.Thedealer

Anantiquesdealerboughtcantiquechairsforatotalofxdollars.Thedealer

It’s8:15inthemorning.They’rehavingthefirstclass.“MayIcomein,

•Lookatthemeetingnotesbelow．•Someinformationismissing．•Y

[originaltext]TheOldCanadaRoadisalonglosttrailbetweentheCanadian

ComeSeptember,thecampusesofAmericawillbeswarmingnotjustwithret

感觉的适应与感受性的变化密切相关。

把总体按照研究目的的某些特性分组，然后在每一组中随机抽取样品组成样本的方法为（

功能清热解毒的药物是A.郁金 B.益母草 C.川芎 D.桃仁 E.牛膝

不良工况后评价是指设备经受(____)等自然灾害、外力破坏等环境影响以及超温、过

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