scott is saving to buy a guitar. in his first week he put aside $42 which he had from his birthday gifts. in each of the following weeks je set aside $8 to his savings.

Question

He needs $400 for the guitar that he wants. In which week will he have enough money for the guitar?

Answer 1

400 = 42+8t

400 - 42 = 8t

358 = 8t

t=44.75

He can buy the guitar starting week 45

So if he starts saving in January, it will be good Christmas gift