Math Math Math

用戶17683

2007-01-17 6:22 pm

1. One florin is worth 28 crnts Candian. If you wanted to buy 1 pound of tea that costed
350 florins for half a pound, then how much (in candian doolars) will 1 pound of tea
cost?

2. Suppose you were a millionaire in the World War ll times. Pineapples were not
rationed and costed about 500 florins for one. How many pineapples could you buy
with 5500 florins?

更新1:

+過程!!!

更新2:

Just one is okay!!!

回答 (1)

用戶156025

2007-01-17 8:00 pm

✔ 最佳答案

1) 用 F 代表 florin，C代表 crnts，P代表"a pound of tea"。

price of one pound of tea that costed 350 florins for half a pound,
0.5 P = 350 F
　 P = 700 F
∴each pound of tea cost 700 florins

how many crnts do 700 florin cost?
　　F = 28 C
700 F = 700 × 28C
700 F = 19600 C
∴ 700 florin cost 19600 crnts

∵each pound of tea cost 700 florins and 700 florin cost 19600 crnts.
∴each pound of tea cost 19600 crnts.

2) 以下我用 F代表 florins ， PA 代表 "a pineapple"

If a pineabple costed about 500 florins for one, how many could I buy with 5500 florins?
　500 F = PA
　　　F = PA ÷ 500
5500 F = 5500 × (PA ÷ 500)
5500 F = 11PA
∴ I could buy 11 Pineapples with 5500 florins.

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