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garik1379 [7]
3 years ago
6

The area of a rectangle is

Mathematics
1 answer:
ANEK [815]3 years ago
8 0
Area = length x width
length = 3 x width - 5

i.e. 50 = w(3w - 5)
3w^2 - 5w - 50 = 0
(3w + 10)(w - 5) = 0
w = -10/3 or w = 5
but width cannot be negative, hence
width = 5 yd
Length = 3 x 5 - 5 = 15 - 5 = 10 yd
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I will !

This is five-fold proportion
The first ratio gives solution namely
We will write general proportion 
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According to this the first ratio gives coefficient k
When we divide 24/2 =12 our coefficient k=12

In the second ratio we will multiply 3 with 12 and get 36.
In the third ratio we will multiplu 5.5 with 12 and get 66.
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Finally the ratio is 24:2=36:3=66:5.5=108:9=180:15

Good luck!!!!


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