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Last Monday the temperature changed at a rate of -3 F per hour. How long did it take for the change in temperature to be -21 F?

Sagot :

Answer:

7 hours

Step-by-step explanation:

just multiply 3 and 7 to get 21

Answer:

[tex]\fbox {7 hours}[/tex]

Step-by-step explanation:

⇒ Rate = -3F/hour

⇒ Starting : -21F

Solving :

⇒ -21/-3

7 hours