Answer:
First account: $10000
second account: $20000
Step-by-step explanation:
First account: A Second account: 30000-A
Interest for 1st account: A * 10% = 0.1A ........ 1
Interest for 2nd account: (30000 - A) * 0.07 = 2100 - 0.07A ........ 2
1+2: (0.1 - 0.07) * A + 2100 = 2400
0.03 * A = 300 A = 10000
B = 30000 - 10000 = 20000
