SOLUTION: A prom ticket at Iona Prep is $220. Jake (if he can get a date!) is going to save money for the ticket by walking his neighbor’s dog for $12 per week. If Jake already has saved

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A prom ticket at Iona Prep is $220. Jake (if he can get a date!) is going to save money for the ticket by walking his neighbor’s dog for $12 per week. If Jake already has saved      Log On


   

Question 1172832: A prom ticket at Iona Prep is $220. Jake (if he can get a date!) is going to
save money for the ticket by walking his neighbor’s dog for $12 per week. If
Jake already has saved $42, what is the minimum number of weeks Jack
must walk the dog to earn enough to pay for the prom ticket?
Found 2 solutions by ewatrrr, mahikab:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi  

$220 - $42 = $178

$12n  ≥ $178   | $178/$12 = 14.8 wks  round up 

n ≥ 15       | NOTE:  $12x15 = $180

minimum number of weeks to pay for the prom ticket is 15 weeks

Wish You the Best in your Studies.

Answer by mahikab(11) About Me  (Show Source):
You can put this solution on YOUR website!
We can first start off by subtracting $42 from $220, to find how much money he needs to save up.
220-42= $178
Now, since we know that he gets $12 dollars a week from walking his neighbor's dog, we divide the total of $178, by $12 to see how many weeks he needs to work in order to reach his goal of $178.
178/12 = 14.83
Since we know he can't work for 0.83 of a week, and since we know the minimum to earn $178 would talk 14.83 weeks, we round our answer up to 15 weeks, since that will guarantee the money we need.