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shtirl [24]
3 years ago
5

The length of a rectangular map is 15 inches and the perimeter is 50 inches. Find the width.

Mathematics
2 answers:
mart [117]3 years ago
6 0
Let width be x.

Length = 15 inches

Perimeter = 50 inches

2(l + w) = 50

2(15 + w) = 50

15 + w = \frac{50}{2} = 25

w = 25 - 15

w = 10

Hence, width is 10 inches.
jonny [76]3 years ago
3 0
P = 2(L + W)
P = 50
L = 15

50 = 2(15 + W)
50 = 30 + 2W
50 - 30 = 2W
20 = 2W
20/2 = W
10 = W.....so the width is 10 inches
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alexgriva [62]
Hey there! :D

Think of this like a triangle. The dock is 15 feet above ground. It is the side of the triangle. The line connecting the bottom of the dock to the base of the conveyor belt is 40 feet. This is like the base. 

The conveyor belt itself is at a diagonal, and should be the hypotenuse. 

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If you look at finding the y-intercepts in the two problems above, you may see there is a pattern forming. The y-intercept is the number that your adding or subtracting that is located after the x (ex. y = 4x - 2 - the y-intercept would be -2)

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