Solve the problem.
-Walt made an extra $\$ 7000$ last year from a part-time job. He invested part of the money at $10 \%$ and the rest at $8 \%$. He made a total of $\$ 640$ in interest. How much was invested at $8 \%$ ?
A) $\$ 4000$
B) $\$ 3000$
C) $\$ 5000$
D) $\$ 3500$

Question

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The Answer of Solve the problem.
-Walt made an extra $\$ 7000$ last year from a part-time job. He invested part of the money at $10 \%$ and the rest at $8 \%$. He made a total of $\$ 640$ in interest. How much was invested at $8 \%$ ?
A) $\$ 4000$
B) $\$ 3000$
C) $\$ 5000$
D) $\$ 3500$

Solve the Problem $7000\$ 7000$7000 Last Year from a Part-Time Job 10%10 \%10%

Solve the Problem $\$ 7000$ Last Year from a Part-Time Job $10 \%$