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A customer purchased an electronic device for 650. Each year the value of the electronic device decreases by 30%. Which statement is true about the graph that represents the relationship between the value of the device in dollars, y, and the number of years, x , since the device was purchased?

Solución

Solución

Amount before reduction : 928.57142 \dots

Pasos de solución

Translate the problem into an equation:

650 = x - 0.3 x

650 = x - 0.3 x : x = \frac{6500}{7}

\frac{6500}{7} = 928.57142 \dots

Amount before reduction : 928.57142 \dots

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