Answer:
P = 70 cents per muffin
Step-by-step explanation:
It says to find the price when the supply and demand are equal, so you have to set the two equations equal to each other.
7700/p = 3p-100.
It seems to me that the best way to solve this would be to set up a quadratic equation.
If you multiply both sides by p and then subtract 7700, you get the following:
0=3p^2 -100p -7700
I wrote a program to solve this, and I got the answers p= 70 and -36.67.
Obviously, a negative number doesn’t work in this situation, so the answer is 70 cents per muffin. To check this, you can plug it back into the equation:
7700/70=3(70)-100
110=110
Rational. Not whole or integer because its an exact measurement and not irrational because it CAN be expressed as a ratio (fraction, decimal measurement )
Answer:
second one
Step-by-step explanation:
just multiply by -9 and see which one fits in
Answer:
Y
Step-by-step explanation:
Think of it as flipping the figure over the x axis. (If you look at the points of the outline of the graph the y values will change signs. (x,y)⇒ (x,-y) )
The correct graph is Y
To solve this, do Betty's points (68) and subtract them from Debbies's (e) to get the expression 68-e.
