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Solve the problem.
-Walt made an extra $10,000 last year from a part-time job. He invested part of the money at 10% and the rest at 9%. He made a total of $960 in interest. How much was invested at 9%?
Variable Cost
Expenses that vary directly with the level of production or sales, including costs for raw materials and direct labor.
Mixing Machines
Equipment used in various industries such as food, pharmaceuticals, and chemicals to combine or blend different ingredients into a homogeneous mixture.
Demand
The quantity of a good or service that consumers are willing and able to purchase at various prices during a specified period.
Variable Cost
Expenses that change in proportion with production output or business activity level.
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