Answer:
Step-by-step explanation:
A.
R(x)=px=x(-45 x+1800)=-45 x²+1800 x
B.
C(x)=7000+100 x
C.
P(x)=R(x)-C(x)=-45 x²+1800 x-(7000+100 x)
or P(x)=-45x²+1800 x-100 x-7000
or P(x)=-45 x²+1700 x-7000
Answer:
The answer is 5:12
Step-by-step explanation:
It is 5:12 because We already know that 7 pens are blue. To find the number of red pens we must subtract 12 - 7 and get 5 as the number of red pens. Now knowing the no. of red pens and total number we can say the ratio of red pens to total no. is 5:12
Well lets just we have
2x-3y=-2
4x+y=24
Well first we see we have "Y'" by itself which is great that means we can use substitution. So now we just set "Y"by itself. So subtract 4x on both sides and we get
y = -4x+24 now we just plug "Y" into the first equation
2x-3(-4x+24)=-2
Distribute the 3 and simplify and we get x=5
Plug (5) back into either top or bottom equations
4(5)+y=24
20+y=24
y=4
Answer:
B) would be te answer
Step-by-step explanation:
