A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
Question about PS1b (Intro to CS spring 2011):
1) What is the decrementing function here? I am confused
2) If balance was 1200 to start with, would newBalance be 1208 after the first loop?
If someone could walk through this problem in words using an example balance I would really appreciate it.
anonymous
 3 years ago
Question about PS1b (Intro to CS spring 2011): 1) What is the decrementing function here? I am confused 2) If balance was 1200 to start with, would newBalance be 1208 after the first loop? If someone could walk through this problem in words using an example balance I would really appreciate it.

This Question is Closed

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0What you're solving for here is "what monthly payment (in multiples of 10) do you need to pay off the balance within 12 months". Here's an example run of the program: Enter the outstanding balance on your credit card: 280 Enter the annual credit card interest rate as a decimal: .2 Month: 1 balance: 275.0 monthlyPayment: 10 Month: 2 balance: 269.0 monthlyPayment: 10 Month: 3 balance: 264.0 monthlyPayment: 10 Month: 4 balance: 258.0 monthlyPayment: 10 Month: 5 balance: 252.0 monthlyPayment: 10 Month: 6 balance: 247.0 monthlyPayment: 10 Month: 7 balance: 241.0 monthlyPayment: 10 Month: 8 balance: 235.0 monthlyPayment: 10 Month: 9 balance: 229.0 monthlyPayment: 10 Month: 10 balance: 222.0 monthlyPayment: 10 Month: 11 balance: 216.0 monthlyPayment: 10 Month: 12 balance: 210.0 monthlyPayment: 10 Month: 1 balance: 265.0 monthlyPayment: 20 Month: 2 balance: 249.0 monthlyPayment: 20 Month: 3 balance: 233.0 monthlyPayment: 20 Month: 4 balance: 217.0 monthlyPayment: 20 Month: 5 balance: 201.0 monthlyPayment: 20 Month: 6 balance: 184.0 monthlyPayment: 20 Month: 7 balance: 167.0 monthlyPayment: 20 Month: 8 balance: 150.0 monthlyPayment: 20 Month: 9 balance: 132.0 monthlyPayment: 20 Month: 10 balance: 115.0 monthlyPayment: 20 Month: 11 balance: 97.0 monthlyPayment: 20 Month: 12 balance: 78.0 monthlyPayment: 20 Month: 1 balance: 255.0 monthlyPayment: 30 Month: 2 balance: 229.0 monthlyPayment: 30 Month: 3 balance: 203.0 monthlyPayment: 30 Month: 4 balance: 176.0 monthlyPayment: 30 Month: 5 balance: 149.0 monthlyPayment: 30 Month: 6 balance: 122.0 monthlyPayment: 30 Month: 7 balance: 94.0 monthlyPayment: 30 Month: 8 balance: 65.0 monthlyPayment: 30 Month: 9 balance: 36.0 monthlyPayment: 30 Month: 10 balance: 7.0 monthlyPayment: 30 Month: 11 balance: 23.0 monthlyPayment: 30 RESULT Monthly payment to pay off debt in 1 year: 30 Number of months needed: 11 Balance: 23.09 You'll notice it starts the monthly payment at 10. Then runs through all 12 months making a payment each month. After each payment, it checks to see if it's paid off. Because it doesn't get paid off within a year at 10/month, it adds 10 (resulting in a monthly payment of 20) and runs through all 12 months again. Checking, of course, every month to see if it's paid in full. It didn't get paid entirely at 20/month so it adds another 10 and runs through the loop to check 30/month ... when it gets to month 11 it determines that everything is paid! At that point, it's solved ... for these input values, it takes 11 months at 30/month to pay it off in under a year. An important note: When you're subtracting the current month's payment from the total each month, remember to ALSO add in the interest for that month at the same time.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Roaming Blue, That is exactly what I was looking for. I was having trouble seeing the sequence of the loops. Now I understand the answer to the problem! Thank you very much for your detailed response. Regards, Tyler

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0@tcc8m Anytime mate, happy coding.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.