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This equation shows how the accuracy of Alexa's watch is related to how long it's been since she last set it.

s = d + 18

The variable d represents the number of days passed since Alexa last set her watch, and the variable s represents how many seconds behind the watch is. How many days has it been since Alexa last set her watch if the watch is 20 seconds behind?

Respuesta :

marincicg2021

Answer:

2

Step-by-step explanantion:

You sustitute 20 for s to get 20 = d + 18, subtract 18 from both sides and you get d = 2.

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