A candy company makes the popular Henney's whose main ingredient is chocolate. The rectangular-shaped bar is 10 centimeters(cm) long, 5 cm wide, and 2 cm thick. The spot price of chocolate has decreased by 60% and the company has decided to reward its loyal customers with a 50% increase in the volume of the bar! The thickness will remain the same but the length and width will be increased by equal amounts. What will be the length and width of the new bar?

Question

A candy company makes the popular Henney's whose main ingredient is chocolate. The rectangular-shaped bar is 10 centimeters(cm) long, 5 cm wide, and 2 cm thick. The spot price of chocolate has decreased by 60% and the company has decided to reward  its loyal customers with a 50% increase in the volume of the bar! The thickness will remain the same but the length and width will be increased by equal amounts. What will be the length and width of the new bar?

anonymous · Answer

The volume of the bar is currently
10 x 5 x 2 = 100
right?

anonymous · Answer

hmm so (x+10)(x+5)2=150

anonymous · Answer

Yes.  Precisely :)

anonymous · Answer

thanks but i can't understand.. how can i get precise number in that eq
uation

anonymous · Answer

like x=0.514

anonymous · Answer

Maybe it's simply not possible?

anonymous · Answer

I think so too :( but book didn't give any clue ..
anyway!! Thank you very much!! :

anonymous · Answer

No problem :)