Answered

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Mario is teaching himself to play guitar. Let x represent the number of days that have passed. Let y represent the number of minutes practiced. The following equation describes the amount of time that Mario practices: y=85- 5x After how many days will Mario only be practicing for 40 minutes?

Sagot :

daniellebustamante20

Answer:

9 days

Step-by-step explanation:

Y= minutes practiced

X= days

Mario practiced 40 minutes So Y= 40

40= 85-5x

40(-85)=85 (-85) -5x

-45=-5x

-45/(-5)= -5x/(-5)

9=x

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