Walt made an extra $\$ 7000$ last year from a part- time job. He invested part of the money at $7 \%$ and the rest at $10 \%$. He made a total of $\$ 580$ in interest. How much was invested at $10 \%$ ?
A) $\$ 4000$
B) $\$ 3000$
C) $\$ 3500$
D) $\$ 7000$

Question

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The Answer of Walt made an extra $\$ 7000$ last year from a part- time job. He invested part of the money at $7 \%$ and the rest at $10 \%$. He made a total of $\$ 580$ in interest. How much was invested at $10 \%$ ?
A) $\$ 4000$
B) $\$ 3000$
C) $\$ 3500$
D) $\$ 7000$

Walt Made an Extra $7000\$ 7000$7000 Last Year from a Part- Time Job

Walt Made an Extra $\$ 7000$ Last Year from a Part- Time Job