Respuesta :
$42+7.70(t)=$80.50
Subtract 42
7.70t=38.50
Divide by 7.70
t=5 hours
Subtract 42
7.70t=38.50
Divide by 7.70
t=5 hours
The answer is t < 5 hours
t - the number of hours
An additional fee of $7.70 per hour is 7.70t
The math club wants to spend less than $80.50: < 80.50
Hence:
42 +7.70t < 80.50
7.70t < 80.50 - 42
7.70t < 38.5
t < 38.5 : 7.70
t < 5 hours
t - the number of hours
An additional fee of $7.70 per hour is 7.70t
The math club wants to spend less than $80.50: < 80.50
Hence:
42 +7.70t < 80.50
7.70t < 80.50 - 42
7.70t < 38.5
t < 38.5 : 7.70
t < 5 hours