You put them in fractions then cross multiple.
18/12 and 3/x so that's 36 equals 18x then you divide 36 by 18 which is 2.
Answer:
the unknown side of the triangle is 
Step-by-step explanation:





or 
Answer:
Volume of Rectangular Prism:
V = lwh thus: V = 5 cm³
Step-by-step explanation:
Answer:
l = 2.5 cm
w = 4 cm
h = 0.5 cm
d = 4.74342 cm
S = 26.5 cm²
Agenda:
l = length
w = width
h = height
d = diagonal
S = surface area
V = volume
Answer:
Infinitely many solutions
Step-by-step explanation:
x+y=3
2x+2y=6
x=3-y
2(3-y)+2y=6
6-2y+2y=6
6+0=6
6=6
infinitely many solutions