Answer:
BCA = 65
Step-by-step explanation:
You conjugate verbs with the pronoun 'on' the same way you conjugate verbs with pronouns 'il/elle'. "On" means "one", qs in "One can do x or y."
16.5 degrees below the starting temp, whatever that is. If its 0, then -16.5 degrees.
The first equation would be (.5)5-11=-8.5, because the metal has been cooling for 5 hours.
The device that 'aids' in the cooling would be -5-3=-8, because it is a separate variable that cools the metal, so the amount the device cools is independent of the natural cooling amount, and the equation is independent of the natural cooling equation.
You then add -8.5 and -8, because the device has lowered 8.5 degrees and 8 degrees. This equals -16.5 degrees, or a decrease of 16.5 degrees.
This is just here for the 20 character limit but the answer is in the picture.
