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otez555 [7]
4 years ago
5

Dominic and Jose go to the movie theater and purchase refreshments for their

Mathematics
2 answers:
Bogdan [553]4 years ago
6 0
Jose - 96.25=9x+8y
dominic - 85.25=3x+10y
expeople1 [14]4 years ago
6 0

That's a lot of money to be spending at the movies.

96.25 = 9p + 8d

85.25 = 3p + 10d

That's our system.

Multiply second equation by 3,

255.75 = 9p + 30d

Subtract first equation

255.75 - 96.25  = 30d - 8d

159.5 = 22/d

d =  159.5/22 = 7.25

3p = 85.25 - 10d = 85.25 - 72.50 = 12.75

p = 4.25

Answer: Price of a drink is $7.25

Check:

9*4.25+8*7.25 = 96.25, good

3*4.25 + 10*7.25 = 85.25, good

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