Question

Jillian is selling boxes of cookies to raise money for her basketball team. The 10 oz. box costs $3.50, while the 16 oz. box costs $5.00. At the end of one week, she collected $97.50, selling a total of 24 boxes. The system of equations that models her sales is below.

x+ y= 24

3.50x + 5.00y = 97.50

Solve the system of equations. How many 10 oz. boxes were sold?

6
9
12
15

Answer 1

Answer:15

Step-by-step explanation:

The no. of 10 oz. boxes is the value of x. We know this because in the second equation it is give as 3.50x and 10 oz. box costs $3.50.

The first equation can be written as 5x + 5y= 120

now eq. 1 - eq. 2=

5x + 5y = 120

-3.5x - 5y= -97.5

⇒ 1.5x = 22.5

⇒x= 22.5/1.5

⇒x = 15 (Ans)

Answer 2

Answer:

=5

Step-by-step explanation:

i got it right on Edgenuity!!!! so beleive me ;)