Q:

PLEASE HELP! The students at Jefferson Middle School are raising money for a charity by selling T-shirts and hats. The number of T-shirts sold was 3 times the number of hats. The profit was $5 for each T-shirt sold and $2.50 for each hat sold. The students raised $840 for the charity. They used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840x=3yHow much did they earn from T-shirt sales?They earned $128 from the T-shirts.They earned $144 from the T-shirts.They earned $360 from the T-shirts.They earned $720 from the T-shirts.

Accepted Solution

A:
Answer: They earned $720 from the T-shirts.Step-by-step explanation:Given : The number of T-shirts sold was 3 times the number of hats. The profit was $5 for each T-shirt sold and $2.50 for each hat sold. The students raised $840 for the charity. Let x denotes the number of T-shirts sold and y denotes the number of hats sold.then, we will have the given system :-[tex]5x+2.50y=840\\x=3y[/tex]It is also given that they used the system below to analyze their success and found the solution to be (144, 48).It means x= 144It means the number of t-shirt sold = 144The amount they earn from t-shirt = [tex]144\times5=\$720[/tex]Hence, they earn $720 from the T-shirts.