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    Math 115 Week 6 questions

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    1) A new car depreciates an average of 22% in its first year of use. If the car was worth $16,000 when it was new, what will the car be worth after 1 year?

    2) A state sales tax rate is 4.8%. If the tax on a purchase was $23.76, what was the price of the purchase?

    3) Ms. Jefferson has been given a loan of $20,000 for 1 year. If the interest charged is $800, what is the interest rate on the loan?

    4) Write 58% as a fraction or a mixed number.

    5) 260 is 40% of what number?

    6) On the blueprint of Lauren's new office building, the scale is 3 in. equals 8 ft. What will be the actual length of Lauren's office if it measures 6 in. long on the blueprint?

    7) Are these two rates of rainfall equivalent?

    1.2 inches of rain in 5 hours
    and
    2.1 inches of rain in 8 hours

    8) A chemist has 400 milliliters (mL) of solution that is 21% acid. How many milliliters of acid are in the solution?

    9) What two whole numbers is between? Explain your thinking.

    10) Complete the statement.

    35 gal = ________ L

    Round to the nearest whole L

    11) Find the missing length of the right triangle.

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    https://brainmass.com/math/fractions-and-percentages/fractions-percentages-problems-283658

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    Please find the solutions attached herewith.

    These are some of the questions off of my test that I am having trouble with. Can you please show me how you get the answers?....I need to know so I can hopefully learn correctly how to work these types of problems out. Thank you.

    1) A new car depreciates an average of 22% in its first year of use. If the car was worth $16,000 when it was new, what will the car be worth after 1 year?

    Solution:

    Depreciated price = 16000 - 22% of 16000

    = 16000 - 0.22*16000
    = 16000 - 3520
    = $12480

    2) A state sales tax rate is 4.8%. If the tax on a purchase ...

    Solution Summary

    Step-by-step solutions to all the fractions and percentages problems are provided.

    $2.19

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