The answer is 2.
Since you are subtracting C(x) from R(x), your equation would look like this.
P(x)=-.5x^2+800x-100-(300x+250)
which if you then simplify would be
P(x)=-.5x^2+500x-350
the reciprocal/ answer is 4/37
Yes, it is true, you can use a letter as a variable in an equation.
HOPE I HELPED!!!
42° because vertical angles are congruent
Answer:
There are 8 friends and the presents costs $30,000
Step-by-step explanation:
Let x be the number of students and y be the price of the present. Their contributions can be expressed as:
#Make y the subject in equation i then substitute in ii:
Hence, there are 8 friends and the present is priced at $30,000