I hope you understood....if not...comment and I will be willing to still help
X= width
length= 3x-7
Area: (x)(3x-7)=40
= 3x^2-7x=40
= 3x^2-7x-40=0
Factorise the equation: (3x+8)(x-5)=0
x=-8/3 (reject because width cannot be negative) or x=5
so width is 5cm and length is 3(5)-7= 8cm !
Answer:
Step-by-step explanation:
If two lines coincide then the system of linear equations has infinitely many solutions.
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1/2
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For every 1 item bought, $2.00 are spent.
<em>Brainliest please!</em>
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