C(x)-R(x)= P(x)
understand?
cost minus how much u sold it for gives u the amt of profit
<span>When you calculate results that are aiming for known values,
the </span>percent error<span> formula
is useful tool for determining the precision of your calculations. The formula
is given by: The experimental value is your calculated value, and the
theoretical value is your known value.</span>
% error = | ( experimental – theoretical) / theoretical | *
100
% error = | (44 – 45.5) /45.5| * 100
<span>% error = 3.30 %</span>
Add -15c and 7c since they have the same variable. After that you get a negative answer so you add the answer to both sides. That will cancel both numbers so it will be 1=3, the answer will be false.