Devs193 Devs193

13-04-2018
Mathematics

contestada

David’s cell phone company charges $0.45 for each text message plus a monthly fee of $50.00. He owes $91.40. Write and solve an equation to find the number of text messages did David have?

Respuesta :

ehrun28 ehrun28

18-04-2018

t = # of text messages
$91.50 = 0.45t + $50
Subtract 50 from both sides
$41.50 = 0.45t
divide by 0.45
92.2 = # of text messages David had

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