Respuesta :

let cost of a pepperoni be p  and cost of a supreme pizza be s., Then:-

500p + 620s = 3730    and

500p + 430s = 2970   Subtract:-

0 +  190s =   760

s = 760/190  =  $ 4.00

and p =  (2970 - 430(4)) / 500 =   $2.50

pepperoni costs $2.50  and supreme costs $4

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