Welcome welcome page Zoom Room Zoom logo ToDoodles Jamboard logo Calculator scientific calculator on Desmos       valid HTML 4.01
Skill Topics
Shapeshifting Topic Mad  Science Topic Justice Topic Typicality Study Skills
Application Topics
Playgrounds Health Decisions Topic Personal Finance Decisions Topic Business Decisions Topic
Being a Mather Class Library LCC Resources Achievements

Math OER
Turn In Problems
Mad Science Ratios

The greatest reward for a student is not a good grade. It is the willingness of his teacher to listen to him.

- Nikolay Konstantinov

homework turn in box You attempted the ten exercises for this topic. Those problems did not have an answer key. Use this form to ask me how well you did.

Before using this page, you should have your homework completed on paper. (Try being nice to your eyes and posture by printing the problems so you can work with pencil and paper instead of a screen.) This page is only for submitting your homework. To be short and concise it lacks any diagrams, pictures, or tables needed to work the problems.

Answer every question. Then use the button at the bottom of the page to create a code by processing your answers. Copy-and-paste the code into an e-mail.

Keep trying until you get 8 out of 10 or more.

1. A retirement annuity will pay the purchaser $15 each month for every $5,000 purchased. What will be the monthly payout if someone buys $65,000 of that annuity?

$16.25 $195 $234 $333 $400

2. A retirement annuity will pay the purchaser $15 each month for every $5,000 purchased. What will be the annual payout if someone buys $125,000 of that annuity?

$3,472 $3,750 $4,000 $4,166 $4,500

3. It is estimated that a driver takes, on average, 1.5 seconds from seeing an obstacle to reacting by applying the brake or swerving. How far (in feet) will a car driving at 85 miles per hour travel before the driver reacts to an obstacle?

31 feet 126 feet 187 feet 510 feet

4. During the past month a boring stock has a price-to-earnings ratio of 11-to-1. Today that company's remarkable new innovation was featured in the news, and the stock price jumped from $44 to $90. What is now the company's expected annual earnings per share?

$4 $4.18 $8.18 $506 $990

5. A college student works as an independent tutor, and charges $20 for every hour she works. If she tutors for 12 hours each week during all nine months of the local school year, how much will she earn from tutoring? Estimate by pretending each month has four weeks.

$2,160 $4,320 $9,360 $8,640

6. Lucy drove from Portland to Denver. On average, she drove 6 hours per day, at 65 miles per hour. Gasoline cost 3 dollars per gallon. Her old car gets 18 miles per gallon of gasoline. How much did she spend each day on gasoline?

$10.83 $11.70 $65 $195

7. Forty students order pizza for a school club event. Each student will eat three slices. A pizza has 8 slices and costs $9. How much will they spend?

$45 $135 $216 $1,080

8. A pest control worker needs to add permethrin to 2 gallons of water. This application needs 3 teaspoons of permethrin per pint of water. How much permethrin should he use? (Hints: 3 teaspoons = 1 tablespoon, and 1 cup = 16 tablespoons)

8 tsp 16 tsp 8 Tbsp 1 cup

9. Your car has a 10 gallon gasoline tank and has a mileage of 24 miles per gallon. When driving cross-country you are at a quarter tank of gasoline remaining and see a sign that says "Next gas 50 miles". Will you make it?

no, I can drive 20 miles
no, I can drive 40 miles
yes, I can drive 60 miles
yes, I can drive 80 miles

10. Luke smokes three-quarters a pack of cigarettes each day. Each pack costs $5.60. How much will he spend per year on cigarettes?

$1,533 $2,044 $2,725 $3,285