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| Wu-banga |
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Registered Member #49
Joined: Tue Dec 06 2005, 01:37AMPosts: 1561 |
Relying on the forum for math help isn't my most desired option, but it's all I got for now. Anyway, on to the problem. Vincente and Ricarda have invested $27,000 in bonds paying 7%. How much additional money should they invest in a certificate of deposit paying 4% simple interest so that the total return on the two investments will be 6%? The only thing I've accomplished is establishing the obvious, that is: x = additional money they should invest at 4% what I know: [return on investment 1] + [return on investment 2] = [total return] [return on investment 1] = 27000 * .07 = 1890 [return on investment 2] = x * .04 [total return] = [total investment] * .06 No idea how to find x... |
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| Ruskiy Soldat |
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Registered Member #465
Joined: Tue Oct 17 2006, 10:00PMPosts: 1295 |
alright im fuckin really bored and sick so here u go.... $27,000 * 0.07 + x * 0.04 = ($27,000 + x ) * 0.06 (27000 * 0.07) + 0.04x = (27000*0.06) + 0.06x 1890 + 0.04x = 1620 + 0.06x 1890 - 1620 = 0.06x - 0.04x 270 = 0.02x x = 270/0.02 x = $13,500 Edited Sat Jan 31 2009, 07:32AM |
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| Wu-banga |
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Registered Member #49
Joined: Tue Dec 06 2005, 01:37AM Posts: 1561 |
Ruskiy Soldat wrote ... alright im fuckin really bored and sick so here u go.... $27,000 * 0.07 + x * 0.04 = ($27,000 + x ) * 0.06 (27000 * 0.07) + 0.04x = (27000*0.06) + 0.06x 1890 + 0.04x = 1620 + 0.06x 1890 - 1620 = 0.06x - 0.04x 270 = 0.02x x = 270/0.02 x = $13,500 Damn you did that so fast. I was looking it over literally 2 fucking hours. I didn't know gangstas know math too, thanks rusky |
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| Ruskiy Soldat |
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Registered Member #465
Joined: Tue Oct 17 2006, 10:00PM Posts: 1295 |
2 hours? damn...u sophomore in highschool right ? | ||
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| Wu-banga |
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Registered Member #49
Joined: Tue Dec 06 2005, 01:37AM Posts: 1561 |
Ruskiy Soldat wrote ... lol im in college but I suck at math2 hours? damn...u sophomore in highschool right ? I still don't know how you got 0.06 for x anyone wanna show me where he got that i'll love you long time. Edited Sat Jan 31 2009, 07:52AM |
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| Wu-banga |
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Registered Member #49
Joined: Tue Dec 06 2005, 01:37AM Posts: 1561 |
[quote] Ruskiy Soldat wrote ... 2 hours? damn...u sophomore in highschool right ? lol im in college but I suck at math I still don't know how you got 0.06 for x Edited Sat Jan 31 2009, 07:46AM |
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| Ruskiy Soldat |
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Registered Member #465
Joined: Tue Oct 17 2006, 10:00PM Posts: 1295 |
damn....what are u takin algebra 2 ? i took algebra 2 during sophomore year pre calculous during junior year and now im takin calculous as a senior. wat u mean u dont know how i got 0.06 for x |
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| Ruskiy Soldat |
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Registered Member #465
Joined: Tue Oct 17 2006, 10:00PM Posts: 1295 |
if 27000k invested at 7 percent plus x amount of money invested at 4 percent than it equals the sum of the two dollar values above * 6%. |
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| Wu-banga |
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Registered Member #49
Joined: Tue Dec 06 2005, 01:37AM Posts: 1561 |
Ruskiy Soldat wrote ... damn....what are u takin algebra 2 ? i took algebra 2 during sophomore year pre calculous during junior year and now im takin calculous as a senior. wat u mean u dont know how i got 0.06 for x im taking Int. Algrebra which is basically algebra 2. They said I required it if I wanted to take calculus so I took it. Calculus is gonna be fuckin annoying though Edited Sat Jan 31 2009, 07:58AM |
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| Ruskiy Soldat |
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Registered Member #465
Joined: Tue Oct 17 2006, 10:00PM Posts: 1295 |
not really calculus is all equations u just gotta remember them all and u are good...what are u tryin to major in ? | ||
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