A culinary club earns $1190 from a dinner service. They sold 34f adultadult meals and 51 student meals. An adult male cost twice as much is a student meal. What is the cost of an adult meal.

Answer:
$20
Step-by-step explanation:
Let S = student meal cost
Let A = adult meal cost
Â
We know that the adult cost is twice the student cost
Â
Formula 1:
A= 2S
Â
We also know that there were 34 adult tickets and 51 student tickets
Â
Formula 2:
34A + 51S = $1,190
Â
Substitute the value of A from formula 1 into formula 2
Â
34(2S) + 51S = $1,190
Â
68S + 51S = $1,190
Â
119S = $1,190
Â
Divide by 119
Â
S = $10
Â
And
A = 2S
A = 2($10)
A = $20