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Beliebt Word Problems >

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?

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Lösung

Acustomerpurchasedanelectronicdevicefor650.Eachyearthevalueoftheelectronicdevicedecreasesby30%.Whichstatementistrueaboutthegraphthatrepresentstherelationshipbetweenthevalueofthedeviceindollars,y,andthenumberofyears,x,sincethedevicewaspurchased?

Lösung

Amountbeforereduction:928.57142…
Schritte zur Lösung
Translate the problem into an equation:650=x−0.3x
650=x−0.3x:x=76500​
76500​=928.57142…
Amountbeforereduction:928.57142…

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