Thursday

July 24, 2014

July 24, 2014

Posted by **Bella** on Monday, October 7, 2013 at 8:19am.

(if you would,just give me the formula and i'll take it from there)

thank you

- Math -
**Reiny**, Monday, October 7, 2013 at 8:52amI will do it using two variables

let the original 3% investment be x

let the original 5% investment by y

.03x + .05y = 1160 or 3x + 5y = 116000

after stated increase in each investment:

.03(1.25x) + .05(1.4y) = 1570

or after multiplying by 100

3.75x +7y = 157000

times 4

15x + 28y = 628000

you now have 2 equations in 2 unknowns, take it from there. (y=16000 , x = 12000)

**Related Questions**

math - arman has 1160 annual income from bonds bearing 3% and 5 % interest. then...

Math - 1.)A picture 8 in. by 12 in. is placed in a frame which has a uniform ...

Math help!! for finals - 1.)A picture 8 in. by 12 in. is placed in a frame which...

12th grade MATH - 1.)A picture 8 in. by 12 in. is placed in a frame which has a ...

algebra - A student has a number of $40 and $ 80 savings bonds to use for part ...

MATH urgent!!! - My problem: From 1992 to 1996, the annual income for all the ...

Math - You would like to invest in $12,000 in two different bonds. Some of the ...

consumer math - Joe McCain purchased 5 $1,000 bonds at 89. The bonds pay 6%. ...

Math - An inheritance of $40,000 is invested in two municipal bonds which pay 6...

Mathematics - Carletta has $10,000 to invest. As her financial consultant you ...