The perimeter of any shape is a measure of the length of the peripheral of that shape.
For a triangle, it is an addition of the length of the 3 sides.
P = a + b + c where a, b, c are the lengths of the individual sides.
p = 10x + 5y = (3x + 4y) + (5x - y) + c
Collecting like terms on the RHS, we have
p = 10x + 5y = 8x + 3y + c
Subtracting 8x + 3y from both sides to give c leaves us with
10x + 5y - (8x + 3y) = c
c = 10x - 8x + 5y - 3y
c = 2x + 2y
S=S1+S2, where S1=12*4=48 cm², S2=0.5*(12-3-3)*(8-4)=12 cm².
S=48+12=60 cm²
Answer:
13
Step-by-step explanation:
Answer:
Elena's sales and expenses will both be $
396
if she sells
36
boxes of cards.
Step-by-step explanation: