John has already saved $40 and wants to buy an I-Pod for $129 in 4 months. To find how much he should save each week he wrote the following equation:

40+16n=129.

2 answers

40+16n=129
16n = 129 - 40
16n = 89
n = 89/16
n = 5.5625 or between 5.56 and 5.57 each week

my teacher told me this.....
40+16n=129 u subtract 40 from both sides to maintain inequality soo 40-40 and 40-129 now ur equation looks like this 16n=89 now divid 16n by 16 and divide 89 by 16 then 1n=5.56