How much did each item cost?

Question

You paid $6.80 more for a pair of pants than you did for a shirt. Your bill for the pants and shirt was $68.80. How much did each item cost?

Answer 1

Hi Ruby, let "s" be the cost of the shirt, and "p" be the cost of the pants. We have 2 equations

 

1) p + s  = 68.80

 

2) p = 6.80 + s

 

We can solve by substituting 6.80 + s for "p" into the first equation

 

6.80 + s + s = 68.80

 

6.80 + 2s = 68.80

 

2s = 62

 

s = $31

 

p = $37.80