(pay、spend、take、cost） l __$20000 on this car. l $200

gsdrher2022-10-04 11:39:542条回答

(pay、spend、take、cost） l ______$20000 on this car. l ____$20000 on buying this car.

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GRE数学请帮我看看Mr. Richard plans to invest $20000 in an account GRE数学请帮我看看 Mr. Richard plans to invest $20000 in an account paying 6% interest annually. How much more must he invest at the same time at 3% so that his total annual income during the first year is 4% of his total initial investment? 第二句话有些不懂 ice5081年前1: bengezhao 共回答了14个问题 | 采纳率78.6%

理查德先生计划投资20000美元到一个年利息6%的账户.他要是想让第一年全部投资的收益为4%,需要另投多少到一个年利息3%的账户上?
设他需要投资到3%项目的资金为x,则
20000*（1+6%）+ x*（1+3%）=（20000+ x）*（1+4%）
我算的结果是 x = 40000,对吗?

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