Problema Solution
a woman bought some large frames for 19 dollars each and some small frames for 9 dollars each at a closeout sale. If she bought 20 frames for 220 dollars, how many of each did she buy?
Answer provided by our tutors
Let
x = the number of large frames
y = the number of small frames
She bought 20 frames altogether:
x + y = 20
She spent $200 on the frames:
19x + 9y = 200
We have the following system of equations:
x + y = 20
19x + 9y = 200
........
click here to see the system of equations solved for x and y
........
x = 2 large frames
y = 18 small frames
The woman bought 2 large frames and 18 small frames.