Need help with algebra homework! To a box that contained 50 pencils 10 out of which were red several more red pencils were added. Now 50% of all pencils in this box are red. How many red pencils were added to the box?

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Grade: Education Subject: mathematics
Need help with algebra homework! To a box that contained 50 pencils 10 out of which were red several more red pencils were added. Now 50% of all pencils in this box are red. How many red pencils were added to the box?
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Best Answer
(41)

25+25 =50 there are 25 red pencils

(44)

2(x+10)=50+x

x=30  

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