18 times 4 = 72
Because 5000 times 4 = 20,000
The change in temp. is -72degrees
First, distribute the negative sign and get -y + 7 = 14
then subtract 7 from both sides and get -y = 7
Divide both sides by -1 and get y = -7
Hope this helps :)
Answer:
C = 1000x + 115 (Answer B)
Step-by-step explanation:
We know that..
C = 20y + 15
y = 50x + 5
So put the Y value in the equation of C
C = 20 (50x + 5) + 15
C = 1000x + 100 +15
C = 1000x + 115
Subsitute for s and do the arithmetic.
.. A = 54s²
.. A = 54(1/3)² . . . . put 1/3 where s is
.. A = 54(1/9)
.. A = 6 . . . . . . square units
