MTH 215 Week 3 MyMathLab® Study Plan for Week 3 Checkpoint

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MTH 215 Week 3 MyMathLab® Study Plan for Week 3 Checkpoint
MTH 215 Week 3 MyMathLab® Study Plan for Week 3 Checkpoint
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 MTH 215

QUANTITATIVE REASONING I

The Latest Version A+ Study Guide 

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Entire Course Link

https://hwsell.com/category/mth-215/

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Please feel free to contact us if  the questions change.

We can provide customized help for you.

Contact Info:  hwtutorial@hotmail.com

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MTH 215 Week 3 MyMathLab® Study Plan for Week 3 Checkpoint

Access the Practice/Simulation/Homework/Game tab.

  1. Click External Content Launch to access MyMathLab®.
  2. Click Homework and Tests in MyMathLab® at the top-left of the screen.
  3. Click Study Plan for the weekly Checkpoint.
  4. Click the green Practice button next to the first un-mastered objective.
  5. Complete the practice problems until you feel ready for a quiz.
  6. Click the Close button. Return to the Study Plan for the weekly Checkpoint.
  7. Click the Quiz Me button.
  8. Correctly answer the questions to earn the Mastery Point (MP). There may be 2-3 questions per Quiz Me.

    1. Note: If you do not correctly answer the questions in the Quiz Me, you must click Practice and successfully complete at least 1 practice problem before you can retake the Quiz Me. You can follow this process and attempt each Quiz Me as often as necessary.

  1. After earning the Mastery Point for the first objective, continue working in the Study Plan using the same process described above until you have earned all Mastery Points for the week.

Important Note: You must earn at least 60% of the Mastery Points this week before moving on to the Checkpoint. It is highly recommended that you earn 100% of the Mastery Points before moving on to the Checkpoint.

  • 2.A Working with Units

  • Decide if a statement involving units makes sense.
  • Brief Review – Powers of 10
  • Determine appropriate units and perform unit conversions.
  • Understand metric prefixes.
  • Solve problems that involve units.

  • 2.B Problem Solving with Units

  • Decide if a statement involving working with units makes sense.
  • Solve application problems involving units.

  • 2.C Problem-Solving Guidelines and Hints

  • Review questions
  • Decide if a statement involving problem solving makes sense.
  • Apply problem-solving strategies.

  • 3.A Uses and Abuses of Percentages

  • Decide if a statement involving percents makes sense.
  • Brief Review-Percentages
  • Brief Review-What is a Ratio?
  • Express percentages as fractions.
  • Find percentage change.
  • Solve percent problems.

Identify the units you would expect for the quantity described below. State the units in words and mathematically.

The price of spring water found by dividing its cost in dollars by its volume in quarts

What are the units in​ words?

A.

quartper dollar

B.

dollar per quart

 

C.

Quart

D.

Dollar

 

What are the units​ mathematically?

A.

$

B.

qt

C.

$​/qt

 

D.

qt​/$

 

 

A new sidewalk will be 5 feet​ wide, 120 feet​ long, and filled to a depth of 3 inches ​(0.25 ​foot) with concrete. How many cubic yards of concrete are​ needed?

The new sidewalk needs

5.6

cubic yards of concrete.

​(Round to one decimal place as​ needed.)

 

 

 

Decide whether the following statement makes sense or does not make sense. Explain your reasoning.

The beach ball we played with has a density of 10 grams per cubic centimeter.

Choose the correct answer below.

A.

This statement makes sense because 10 grams per cubic centimeter is far greater than the density of​ air, which is approximately 0.001225 grams per cubic centimeter. The ball would be just the right weight to throw.

B.

This statement makes sense because 10 grams per cubic centimeter is less than the density of​ water, which is 100 grams per cubic centimeter.​ Thus, the beach ball would float in water.

C.

This statement does not make sense because 10 grams per cubic centimeter is far greater than the density of​ water, which is 1 gram per cubic centimeter. Not only would this beach ball be​ heavy, it would sink in water.

 

D.

This statement does not make sense because 10 grams per cubic centimeter is much less than the density of​ air, which is approximately​ 1,225 grams per cubic centimeter. The ball would actually float in the air if this were true.

 

 

 

 

Decide whether the following statement makes sense or does not make sense. Explain your reasoning.

The nurse gave a​ 100-kilogram man twice as large a dose as a​ 50-kilogram woman.

Choose the correct answer below.

A.

This statement makes sense because medicine dosages are often given based on a​ person’s medical​ condition, and in this case the man was far more sick than the woman.

B.

This statement makes sense because medicine dosages often require calculations based on a recommended concentration per kilogram of body weight.

 

C.

This statement does not make sense because the reccommended concentration of a medicine dose is based on the​ person’s medical​ condition, not their body weight.

D.

This statement does not make sense because medicine dosages are often calculated from a recommended concentration per kilogram of body​ weight, therefore the man should have received half the dose of the woman.

 

 

 

 

 

Suppose that in​ 2008, 712,650 citizens died of a certain disease. Assuming the population of the country is 321 ​million, what was the mortality rate in units of deaths per​ 100,000 people?

The mortality rate is

222

deaths per​ 100,000 people.

​(Simplify your answer. Round to the nearest integer as​ needed.)

 

 

 

 

 

Describe the four basic steps of problem solving.

What is the first basic step of problem​ solving? Choose the correct answer below.

 

A.

Obtain extra information that is not provided in the problem​ statement, if necessary.

B.

Keep an​ organized, neat, and written record of your work.

C.

Understand the problem.

 

D.

Be sure that your result makes sense.

What is the second basic step of problem​ solving? Choose the correct answer below.

 

A.

​Double-check each step so that errors are not carried through to the solution.

B.

Find an independent way of checking the result.

C.

Think about the context of the problem.

D.

Devise a strategy for solving the problem.

 

What is the third basic step of problem​ solving? Choose the correct answer below.

 

A.

Restate the problem in different ways to clarify its question.

B.

Consider and discuss any pertinent implications of the result.

C.

Carry out your​ strategy, and revise it if necessary.

 

D.

Map out a strategy with a flow chart or diagram.

What is the fourth basic step of problem​ solving? Choose the correct answer below.

 

A.

Constantly reevaluate your strategy and create a revised strategy as needed.

B.

Look back to​ check, interpret, and explain your result.

 

C.

Make a mental or written model of the situation.

D.

Make a list of possible strategies.

 

 

 

 

 

A toll collector on a highway receives ​$8 for buses and ​$3 for sedans. At the end of a 2​-hour ​period, she collected ​$136. How many buses and sedans passed through the toll booth during that​ period? List all possible solutions.

Which of the choices below are possible solutions to the​ problem? Select all that apply.

A.

2 buses and 40 sedans

 

B.

5 buses and 32 sedans

 

C.

14 buses and 8 sedans

 

D.

8 buses and 24 sedans

 

E.

9 buses and 21 sedans

F.

33 buses and 3737 sedans

G.

15 buses and 5 sedans

H.

0 buses and 45 sedans

I.

17 buses and 0 sedans

 

J.

11 buses and 16 sedans

 

 

 

 

 

The price of a​ four-star meal, only ​$160 per couple decades​ ago, has since increased 300​%. The current price of a​ four-star meal is which of the​ following?

Choose the correct answer below.

A.

A​ four-star meal is ​$480480 because 3 times $ 160 equals $ 4803×$160=$480.

B.

A​ four-star meal is ​$960960 because 3 times $ 160 equals $ 4803×$160=$480​, which is multiplied by 2 because the price is per couple.

C.

A​ four-star meal is ​$12801280 because 3 times $ 160 equals $ 4803×$160=$480​, which is added to ​$160160 and then multiplied by 2 because the price is per couple.

D.

A​ four-star meal is ​$76 comma 80076,800 because 3 times $ 160 equals $ 4803×$160=$480​, which is multiplied by 160160.

E.

A​ four-star meal is ​$640 because 3 times $ 160 equals $ 480   3×$160=$480​, which is added to ​$160.

 

F.

A​ four-star meal is ​$320320 because 3 times $ 160 equals $ 4803×$160=$480​, from which ​$160160 is subtracted.

 

 

 

 

 

 

 

Suppose the value of a home changed by minus−40​% over the past five years. Which of the following is​ true?

Choose the correct answer below.

A.

The house decreased in value over the past five years because the relative change is negative.

 

B.

The house increased in value over the past five years because if the relative change is​ negative, the absolute change is positive.

C.

The house decreased in value over the past five years because the value of the house is 4040​% of its original value.

D.

The house increased in value over the past five years because if the absolute change is​ negative, the relative change is positive.

E.

A mistake was made in the calculation because absolute change cannot be negative.

F.

A mistake was made in the calculation because relative change cannot be negative.