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marissa [1.9K]
3 years ago
13

On a buying trip in Los Angeles Rosario Perez ordered 120 pieces of jewelry a number of bracelets at $8 each and a number of nec

klaces at $11 each. She wrote a check for $1080 to pay for the order. How many bracelets and how many necklaces did Rosaria purchase?
Mathematics
1 answer:
Crazy boy [7]3 years ago
3 0

Answer:

Two equation system

80 bracelets

40 necklaces

Step-by-step explanation:

x+y=120

8x+11y=1080

x=120-y

8(120-y) +11y=1080

x=120-y

960-8y+11y=1080

x=120-y

3y=120

x=120-y

y=40

x=120-40

y=40

x=80

y=40

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