Question

An investor invested in a total of $3200 in two mutual funds. One fund is 5% profit and other is 2% profit. If the total profit was $130, then how much was invested in the mutual fund? 5% =? and 3% =?

Answer 1

so you would write system of equation

Answer 2

Okay how would I go about doing this

Answer 3

wait is it 2% or 3%?

Answer 4

3%

Answer 5

5% and 3%

Answer 6

let define
a= amount invested in 3%
b= amount invested in 5%

Answer 7

a+b=3200

make sense?

Answer 8

yes

Answer 9

now another equation

.03 * a+.05 b=130

Answer 10

make sense?

Answer 11

.03a+.0b=130?

Answer 12

.05

Answer 13

3 percent is .03 in decimal

if you multiply by amount invested , you get profit

Answer 14

.03 x 130?

Answer 15

?

Answer 16

130 is total invest or 3200

Answer 17

3200 is total investment

Answer 18

okay

Answer 19

a + b = 3200
.03a+.05b=130

now you have to solve for a and b

Answer 20

okay

Answer 21

do it

Answer 22

5x+3(3200-x)=130?

Answer 23

a+b=3200

a=3200-b

Answer 24

sub that into second equation

Answer 25

.03a+.05b=130
.03(3200-b)+.05b=130

Answer 26

Okay

Answer 27

I am so illiterate with these types of math problems