Answer:
23,000
Explanation:
Jessica invested her savings in two investment funds
The amount that she invested in fund A was $8000 than the amount invested in fund B
A + B = -8000.......... equation 1
Fund A returned 2% profit and fund B returned 8% profit
2/100= 0.02 , 8/100= 0.08
0.02A + 0.08B= 2140.............equation 2
From equation 1
A -B= -8000
A= -8000+B
Substitute -8000-B for A in equation 2
0.02(-8000+B) + 0.08B= 2140
-160+0.02B + 0.08B= 2140
-160 + 0.1B= 2140
Collect the like terms
0.1B= 2140+160
0.1B= 2300
B= 2300/0.1
B= 23,000
From equation 1
A-B= -8000
A= -8000+B
Substitute 23,000 for B
A = -8000+23000
A= 15,000
Hence Jessica invested 23,000 in fund B
