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jenelle and hadiya went to lunch,the bill,before sales before sales tax and tip,was 37.50.a sales tax of 8% was added.they added an 18% tip on the amount after the tax was added.a)what was the amount,in dollars,of the sales tax.b)what was the total amount they paid,including tax and tip.

Sagot :

$37.50

tax = 8%

tip = 18%

a) 37.5 ------------------ 100%

x ------------------- 8%

x = (8 x 37.5) / 100

x = 3

Tax = $3

b) Money of lunch plus tax = $40.5

40.5 -------------------- 100

x --------------------- 18

x = (18 x 40.5) / 100

x = 7.29

Total amount paid = 7.29 + 40.5

= $ 47.79