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
U use y=mx+b to find the slope, and the answer would be m=-3
Answer:
<h2>Factor perfect squares out of the square root until there are no more perfect squares inside.</h2>
Step-by-step explanation:
<h2>Begin by working inside the square root itself. You can manipulate the interior of the square root as much as you'd like so long as you don't violate any other rules of algebra. </h2>
<h2>√160=√16⋅10</h2>
<h2>Because 16 is a perfect square, we can pull it out of the square root as a 4.</h2>
<h2>That will simplify down to 4√10</h2>
<h2>because there are no additional perfect square factors in 10, the resultant is simplified.</h2>
<h2>Therefore, √160 simplifies to 4√10</h2>
Answer:
yes, sounds linear.
this is an mx + b scenario.
here's the model:
y = )3/1)x + 50
or
y = 3x + 50
where the 1 in the slope denominator is a square foot.
Answer:
120 km
distance = speed * time
90 minutes can be converted to 1.5 hours
speed given 80 km/h and time given 1.5 hours
so distance = 80 * 1.5 = 120 km
