In 1980, the cost ofp pounds of potatoes was d dollars. In 1990, the cost of 2p

游客2025-02-24 49

问题 In 1980, the cost ofp pounds of potatoes was d dollars. In 1990, the cost of 2p pounds of potatoes was d/2 dollars. By what percent did the price of potatoes decrease from 1980 to 1990?

选项 A、25%
B、50%
C、75%
D、100%
E、400%

答案 C

解析

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In 1980, the cost ofp pounds of potatoes was d dollars. In 1990, the cost of 2p

Thecustomeraccusedthecook______usingcannedpotatoes.A、forB、withC、ofD、a

Freshpotatoesgenerallycostabout$2fora10-poundbag,whereasdehydratedi

Itstoodtwelvefeettall,weighedninethousandpounds,andwieldedseven-inch

Ifanathletesweightdecreasedfrom160poundsto152pounds,whatwastheperc

Anantiquesdealerboughtcantiquechairsforatotalofxdollars.Thedealer

MachineA,workingaloneatitsconstantrate,producesxpoundsofpeanutbutte

Thetotalcostof8bagelsatabakeryisxdollars.Atthiscostperbagel,whi

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