Respuesta :
To do the math for this question, you would need to multiply the 5 degrees that it goes down each hour and multiply it by 3 hours to figure out how my degrees it has gone down in three hours. 5 degrees x 3 hours = 15 degrees in 3 hours Then you take the 8 degrees from midnight and subtract the 15 degrees to figure out what the temperature was at 3am. 8 - 15 = -7 degrees If I did the math correctly, the answer should be -7 degrees. Hope this helps!
Answer:
[tex]-7[/tex] degrees.
Step-by-step explanation:
Let x represent number of hours.
We have been given that the outdoor temperature declined 5 degrees during each of the of the next 3 hours. So temperature decline in each hour would be [tex]-5x[/tex].
The outdoor temperature at midnight was 8 degrees. The temperature x hours after midnight would be [tex]8-5x[/tex].
To find the temperature at 3 am, we will substitute [tex]x=3[/tex] in the expression as:
[tex]8-5(3)[/tex]
[tex]8-15=-7[/tex]
Therefore, the outdoor temperature was [tex]-7[/tex] degrees at 3 am.
