+0  
 
+1
176
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avatar+558 

(a)   Write an equation to represent this situation.

Solve the equation. 

 Feb 7, 2018
 #1
avatar+96055 
+1

a)  Call the consecutive free throws needed, x

So we have

 

[ 12 + x ]  / [ 15 + x ]  =  .85

 

 

b)   Multiply both sides by  15 + x

 

12 +  x   =  .85 ( 15 + x)     simplify

 

12 + x  =  12.75  + .85x      rearrange

 

1x - .85x   =  12.75 - 12

 

.15x  =  .75      divide both sides by  .15

 

x  = 5   [ consecutive free throws ]

 

 

cool cool cool

 Feb 7, 2018

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