calculusxy
  • calculusxy
If sweatshirts cost $28 and tee shirts cost $15 and William spent $1440 buying a total of 70 sweatshirts and tee shirts for the school store, how many tee shirts did he purchase?
Mathematics
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SOLVED
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katieb
  • katieb
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calculusxy
  • calculusxy
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
do you have the 2 equations set up?
calculusxy
  • calculusxy
So this is what I have: \[70($28) + 15s = $1440\]

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jim_thompson5910
  • jim_thompson5910
70 is the number of t-shirts and sweatshirts combined
jim_thompson5910
  • jim_thompson5910
x = # of sweatshirts y = # of t shirts x+y = 70
jim_thompson5910
  • jim_thompson5910
`sweatshirts cost $28 and tee shirts cost $15 and William spent $1440` 28x + 15y = 1440 is the other equation
calculusxy
  • calculusxy
Oh okay

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