Spring98
  • Spring98
A pencil at a stationery store costs $1, and a pen costs $1.50. Stella spent $21 at the store. She bought a total of 18 items. Which system of equations can be used to find the number of pencils (x) and pens (y) she bought? A. x + 18y = 21 x = 1.5y B. 18x + y = 21 x = 1.5y C. x + 1.5y = 21 x + y = 18 D. 1.5x + y = 21 x = 18y
Mathematics
schrodinger
  • schrodinger
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texaschic101
  • texaschic101
she bought a total of 18 items (both pens and pencils) x + y = 18 pencils (x) cost $1 and pens (y) cost $1.50.....totaling $21 1x + 1.50y = 21.....or you could leave the 1 off the x and the 0 off of 1.50 ......x + 1.5y = 21
Spring98
  • Spring98
so is it C?
Spring98
  • Spring98

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Haseeb96
  • Haseeb96
@Spring98 do you have more questions?
Spring98
  • Spring98
no
Haseeb96
  • Haseeb96
okay

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