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blagie [28]
3 years ago
6

A rectangle’s length is 8 cm more than three times its width. If the perimeter is 128 cm, find the length and the width.

Mathematics
1 answer:
bixtya [17]3 years ago
5 0
Width = w=?
Length = l=(3w+8)cm
Perimeter = p = 128cm

Perimeter of a Rectangle = length + length + width + width
Perimeter of a Rectangle =2 length +2 width
P = 2l +2 w
128=2(3w+8)+2w
128=6w+16+2w
128-16=8w
112=8w
112/8=8w/8
14=w
w=14


Width = w= 14cm
Length = l=(3w+8)=3(14)+8 = 42+8 = 50cm
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We can check these two rules for this graph:

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Keep in mind that two different x-values can have the same y value.

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Dmitriy789 [7]

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Where, “b” is the base (adjacent side) and “h” is the height (perpendicular side). Hence, the area of the right triangle is the product of base and height and then divide the product by 2.

We know that the hypotenuse is the longest side. So, the area of a right angled triangle will be half of the product of the remaining two sides.

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a buret is a tool designed to transfer precise amounts of liquid .A buret initially contains 70.00 millimeters of a solution and
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Let:

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