Answer:
p= -3/2 or p= -1 1/2
Step-by-step explanation:
Answer: $81.60
Step-by-step explanation:
When we have an original price OP, and a markup of X% (this is how much increases the price with respect to the original price)
The retail price will be:
RP = OP + (X%/100%)*OP
RP = OP*(1 + X%/100%)
In this case, we have:
Original price = OP = $68
markup = X% = 20%
Replacing these in the above equation, we get:
RP= $68*(1 + 20%/100%) = $68*(1 + 0.20)
RP = $68*(1.20) = $81.60
Then the retail price of this particular item is $81.60
Answer:
(x-43.45)(x+7.45)=0.
Step-by-step explanation:
We have the quadratic equation
i.e. 
Now, the roots of the quadratic equation
are given by 
So, from the given equation, we have,
a = 1, b =-36 , c = -324.
Substituting the values in
, we get,

i.e. 
i.e. 
i.e. 
i.e.
and i.e. 
i.e.
and i.e. 
i.e. x = 43.45 and x = -7.45
Hence, the factored form of the given expression will be (x-43.45)(x+7.45)=0.