anonymous
  • anonymous
As a fundraiser, a school club is selling posters. The printer charges a $21 set up fee, plus $0.40 for each poster. Then the cost y in dollars to print x posters is given by the linear equation y=0.40x+21. a) What is the cost y in dollars to print 50 posters? To print 100 Posters? b) Find the number of posters x if the printer billed the club for costs of $81.00 c) Write the information from parts (a) and (b) as three ordered pairs. The first paid from (a) is The second pair from (a) is The paid from (b) is
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
(a) $41 explanation: .4(50)+21=41 (a)$61 explanation: .4(100)+21=61 (c) 150 posters explanation: 150(.4)+21=$81
kymber
  • kymber
|dw:1332873051726:dw| For A: substitute 50 and 100 into the equation as x Solve For B: substitute $81 dollars as y in the equation, since y is the total fee. Solve |dw:1332873440125:dw|