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+1
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avatar+154 

(t)1(e)+(s)49(T)=(03)50

 

C: yay.

FunMath  Dec 11, 2017
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 #1
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+1

a      40v + 15d ≤ 175

 

b     40(2) +  15d  ≤ 175

 

       80 +  15d ≤  175    subtract 80 from both sides

 

       15d  ≤   95        divide both sides by 15

 

          d ≤  6 + 1/3      but   d  must be a whole quantity....so.....d  = 6

 

He can buy  - at most - 6 DVDs 

 

 

c    No DVDs..solve this

 

40 v ≤  175      divide both sides by 40

 

v ≤  4 + 3/8...........  ⇒  4  video games

 

 

 

cool cool cool

CPhill  Dec 11, 2017

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