Answer:
The third one.
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
first is half of michels age, 6, then multiply it by 2, which is samanthas age, and then multiply that by 3, which is bens age.
Let the base of the ladder be x ft and the extension be y ft.
"when fully extended, a ladder is 28 feet in length."
means: x+y=28
"<span>the extension is 4 feet shorter than the base</span>"
means: y=x-4, that is x-y = 4, (taking y to the side of x, and -4 to the other side of x and y)
thus, we have the system of equations:
1) x+y= 28
2) x-y=4
adding the 2 equations, we have:
(x+y)+(x-y)=28+4
2x=32
x=32/2=16
x+y=28, so 16+y=28, thus y=12
Answer: Base: 16, Extension 12
Answer:
Step-by-step explanation:
if A=1/2 bh
to solve for b
2A=bh
b=2A/h
Answer:A
Step-by-step explanation:
