Substitution Method

Substitution Method
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  • today at our park we had a total of 1000 people. but we need to know how much kids tickets and how much adult tickets we sold.
  • well if each kid ticket costs $6.00 and each adult ticket costs $8.00 and we had a total of $7,150 it will be easy to figure out.
  • We will use substitution method to solve it.
  • How will it be easy?
  • let A= adults Let k= kids A+K=1000 $8.00A+$6.00K=$7,150 K=1000-A  8A+6(1000-A)=7150 8a+6000-6a=7150 2a+6000=7150 2a=1150 a=575 K=1000-575 K=425
  • There were 575 adult tickets sold, And 425 Kids tickets sold.
  • Good work Billy
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