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Dima020 [189]
3 years ago
9

WILL MARK BRAINLIEST

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

Part B: 45 minutes

Step-by-step explanation:

x+y=75

y= -x+75

-x   -x  

y+15=x

-x+75+15=x

90/2=2x/2

x=45  

y+15=45  

-15  -15

y=30

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