Answer:
Scalene
Step-by-step explanation:
Answer:
40yd
Step-by-step explanation:
area of total minus unshaded portion
It will be a system of equations.
A=1*w
l=2w
Solve by substitution.
Answer:
9
Step-by-step explanation:
First, write the equation.
C(n) = 4 + 3n
We know that C(n) = 31, so we can substitute it.
31 = 4 + 3n
Subtract 4 from both sides to isolate the term with the variable.
27 = 3n
Divide both sides by 3 to get the variable by itself.
9 = n