Answer:
Step-by-step explanation:
total profit=income -cost
or
P(x)=R(x)-C(x)=-0.5x²+800x-100-(300 x+250)
or P(x)=-0.5x²+800x-100-300x-250
or P(x)=-0.5 x²+500 x-350
so (2)
Answer:
67
Step-by-step explanation:
Y - 3 = 2(x+5)
y - 3 = 2x + 10
-3 - 10 = 2x - y
-13 = 2x - y
D) 2x - y = -13
The population grew by 8, or 10%.
The gains from births and immigrating in were 21+6=27. The losses from deaths and emigrating out are 12+7=19. (Since it is a loss, it will be -19.)
27-19 = 8 total gained; 8/80 = 1/10 = 10%
Answer:
10 boards
Step-by-step explanation:
In this case we can reverse the calculation or whatever you call it
<em>X</em>(how many boards)x3,75 (length per board)= 36 (total length for the table)
now we reverse it by writing 36/3,75 and we get 9,6.
but we need a whole board/number. which means instead of having 9 and 0.6 boards, we add an entire board instead. 9+1=10