*4.3.11 A woman bought some large frames for ​$11 each and some small frames for ​$8 each at a closeout sale. If she bought 26 frames for ​$232​, find how many of each type she bought.

Respuesta :

Answer:

She bought 8 large frames and 18 small frames of each type.

Step-by-step explanation:

Given:

A woman bought some large frames for ​$11 each and some small frames for ​$8 each at a closeout sale.

If she bought 26 frames for ​$232​.

Now, to find each type she bought.

Let the number of large frames for $11 be [tex]x.[/tex]

And let the number of small frames for $8 be [tex]y.[/tex]

So, the total number of frames:

[tex]x+y=26[/tex]

[tex]x=26-y\ \ \ \ .........(1)[/tex]

Now, the total cost of frames:

[tex]11x+8y=232[/tex]

Substituting the value of [tex]x[/tex] from equation (1) we get:

[tex]11(26-y)+8y=232[/tex]

[tex]286-11y+8y=232[/tex]

[tex]286-3y=232[/tex]

Subtracting both by sides 286 we get:

[tex]-3y=-54[/tex]

Dividing both sides by -3 we get:

[tex]y=18.[/tex]

The number of small frames = 18.

Now, substituting the value of [tex]y[/tex] in equation (1) to get the value of [tex]x[/tex]:

[tex]x=26-y\\\\x=26-18\\\\x=8.[/tex]

The number of large frames = 8.

Therefore, she bought 8 large frames and 18 small frames of each type.