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dusya [7]
3 years ago
9

A rectangle has a length that is 10 less than 3 times the width. If the rectangle has an area of 8 square feet, what is the widt

h of the rectangle? Enter your answer as the correct value, with the correct unit of measurement, like this: 42 meters Be sure to use the correct units from the context of the problem.
Mathematics
1 answer:
Artemon [7]3 years ago
5 0

Answer:

Step-by-step explanation:

let width w=x

length l=3x-10

then area= w*l=x(3x-10)=8

3x²-10x-8=0

3x²-12x+2x-8=0

3x(x-4)+2(x-4)=0

(x-4)(3x+2)=0

x=4,-3/2(rejected)

width=4 feet

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