Question

Jason's part-time job pays him $155 a week. If he has already saved $375' what is the minimum number of weeks he needs to work in order to have enough money to buy a dirt bike for $900

Answer 1

He needs to work for a minimum of 4 weeks

Explanation:

Amount he has saved=$375

Amount he needs to earns to buy a dirt bike=He earns $155 per week=155×Number of weeks he's worked(N)

This can be expressed as;

The total amount he earns=(Amount saved)+(Amount he earns per week)

Where;

Amount he needs to earn to buy a dirt bike=$900

Amount saved=$375

Amount he earns per week=155N

Replacing in the expression above

900=375+155N

900-375=155N

525/155=155N/155

N=3.4 weeks

Number of weeks=N=3.4 weeks

Minimum Number of weeks he needs to work=4 weeks