What percentage of 50 pounds is thirty five pounds?

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Ответ:

gggggg47

21.12.2021

Mathematics

{-1,10}

Step-by-step explanation:

x^2-9x-15=-5 given

x^2-9x-10=0 addition property of equality

x^2+(x-10x)-10=x^2+x-10x-10=0 x-10x = -9x

x(x+1)-10(x+1)=0 distributive property ( x( y + z ) = xy + xz

(x-10)(x+1)=0 distributive property (backwards)

x-10=0;x=10;x+1=0;x=-1 at least one factor of 0 has to be 0

{-1,10}

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