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anonymous
 5 years ago
you invest a total of $13750 in two companies (part in SLW and part in STDY). After one year the SLW investment increases by 6.4% and the STDY investment increases by 3.9%. How much was invested in STDY if the TOTAL increase in the initial investment was 6.2%
anonymous
 5 years ago
you invest a total of $13750 in two companies (part in SLW and part in STDY). After one year the SLW investment increases by 6.4% and the STDY investment increases by 3.9%. How much was invested in STDY if the TOTAL increase in the initial investment was 6.2%

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0so if the total increase of the initial investment (from both companies? or just from this one) is 6.2%; then ....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0x + y = 13750 x(6.4%) + y(3.9%) = 13750(6.2%) we good with this so far?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yea and i can take it from there

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i can just use the elimination method right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0id rename it SLW and STDY just to be on the safe side :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0elimination is when you canel out one variable...it might be an option; but usually I just solve for one of the top variables and sustitute it into the bottom one.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0that would be easier :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0x + y = 13750 y = 13750  x  x(.064) + y(.039) = 13750(.062) x(.064) + (13750  x)(.039) = 13750(.062)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0solve for "x" and then back it up for "y"

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0right. i will tell you what i get, one minute

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i got 1.59 for x now about to plug back in for y

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i think i did something wrong thats REALLY small

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ok....ill double check your work :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i multiplied everything

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and got .064x + 536.25x = 852.5

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0solved for x and got 1.59 (rounded) but that doesnt work when i solve for y

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0x(.064) + (13750  x)(.039) = 13750(.062) .064x .039x + 536.25 = 852.50 .025x = 316.25 x = 316.25/.025 x = 12650

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0OHH i didn't distribute the .039 properly

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you just clarify for me and show me kinda step by step how you set up the two equations? based off of the word problem?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0I can..if your still around

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0There are 2 companies that you invest a certain number of dollars in: one company get s "x" amount of dollars and the other gets "y" amount of dollars. the amount invested into both companies has to equal 13750. x + y = 13750

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0We know that each company has a different interest rate that they pay so we set this up accordingly we know that x amount of dollars gets us 6.4% and y amount of dollars gets us 3.9%. We are also told that the total amount of interest earned from all the monies invested was 6.2%.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0interest earned is a simple calcultion; it is amount of money times interest rate. plain and simple. x(6.4%) + y(3.9%) = 13750(6.2%) right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, ok i get it i just wanted to reinforce it
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