Answer:
x=-2 , y=9
Step-by-step explanation:
What we Know: 3 box have some counters. There are 63 counters when they are all combined.
A and B counters = 36
The difference between A and C is 10.
Since we already know A and B we can subtract them from 63 to get C
C= 63- 36 = 27
Now we have to find A by looking for what number gives us the difference of 10 when subtracted from C.
36 = 18+ 18 or 19+ 17
18 and 18 wont work because it does not give us the difference of 10.
So A = 17 counters and B = 19 counters.
She can buy 31 songs. Having $40.01 after buying the album, you need to divide this buy $1.29 for each song. You would get 31.105, but you can't buy a fraction of a song, so it would be 31 songs.
