Answer:
step 1 communative property
Step-by-step explanation:
just look it up I forget about this
Substitute a number for each variable
Ex.
2x x=5
(2)(5)
=10
Answer:
acute
right angle or obtuse
obtuse
Step-by-step explanation:
those are the answers
Answer:
y= -3x+2
Step-by-step explanation:
1. The formula for calculate the perimeter of a rectangle, is:
P=2L+2W
P is the perimeter of the rectangle (P=320 feet).
L is the lenght of the rectangle.
W is the width of the rectangle.
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2. The problem says that the length of the rectangle is three times the width, so you have:
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L=3W
3. When you substitute L=3W and P=320, into P=2L+2W, you obtain:
P=2L+2W
320=2(3W)+2W
320=6W+2W
8W=320
W=320/8
W=40 feet
4. The barn forms one end of the rectangle. Therefore the linear feet of fence (x) is:
x=P-W
x=320 feet-40 feet
x=280 feet
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How many linear feet of fence must he buy?
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The answer is: 280 feet
