Respuesta :

jamilashah
1. 15 + 6t = 81    To solve for t subtract 15 from both sides. 
6t = 66    Divide both sides by 6 
t = 11 

2. 40 + 55h = 190  Subtract 40 from both sides 
55h = 150       Divide both sides by 55 
h = 2.7