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marusya05 [52]
2 years ago
14

Help me please thank you!​

Mathematics
2 answers:
sergiy2304 [10]2 years ago
8 0

Answer:

35mins

Step-by-step explanation:

Can you hear me now cost function: y=0.15x+50.75

24 Hour Calls cost function: y=0.9x+24.5

Set two equations equal to each other because we want to find the time (x value) that make the cost  (y-value) equal

0.15x+50.75=0.9x+24.5

0.75x=26.25

x=35mins

Gemiola [76]2 years ago
7 0
35 mins is probably the answer
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