Mathematics
Burtonite14
26

a cell phone company offers two different monthly plans.plan a charges $41 for unlimited cell phone minutes plus $0.10 per text message.Plan b charges $31 for unlimited cell phone minutes plus $0.15 per text message.How many text messages must a customer send in order for the cost of plan a to be equal to cost of plan b?

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(1) Answers
lilchop06

41+0.10x = 31+0.15x10 +0.10x=0.15x10=0.05xx=10/.05x= 200 text messages check 200*0.10 = 20 +41 =61200*0.15 = 30+31 = 61  they equal each other so number of texts is 200

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