You have already saved $55. You earn $9 per hour at your job. You are saving for a bicycle that costs $199. How do you write an inequality that represents the possible numbers of hours you need to work to buy the bicycle?
You must work for at least
You already have
You also earn
Algebraically, this can be written as
You need to earn at least
Let's find out how many hours you need to work to buy the bicycle.
Dividing both sides by
Therefore, you need to work at least