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vagabundo [1.1K]

2 years ago

9

at a concession stand, one person purchased 3 drinks a 3 soft pretzels for a total of $9.00. another person purchased 4 drinks a

nd 2 soft pretzels for a total of $8.50. what was the price of one soft pretzel

1 answer:

gavmur [86]2 years ago

5 0

<span>d=drinks
p=pretzels
1st eq. 3d+3p=9.00
2nd eq. 4d+2p=8.50</span>

multiply 1st eq by 2

6d+6p=18.00

<span>multiply 2nd eq by 3
12d+6p=25.50
subtract
-6d=-7.50
d=1.25
3p=9.00-3d</span>

3p=9-3.75

<span>3p=5.25
p=1.75
price a pretzel=$1.75</span>

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