Basic Mathematics for College Students

96. ACCOUNTING Complete the balance sheet
    below. Then determine the overall financial
    condition of the company by subtracting the total
    debts from the total assets.


97. OVERDRAFT PROTECTION A student forgot
    that she had only $15 in her bank account and wrote
    a check for $25, used an ATM to get $40 cash, and
    used her debit card to buy $30 worth of groceries.
    On each of the three transactions, the bank charged
    her a $20 overdraft protection fee. Find the new
    account balance.


98. CHECKING ACCOUNTS Michael has $1,303 in
    his checking account. Can he pay his car insurance
    premium of $676, his utility bills of $121, and his rent
    of $750 without having to make another deposit?
    Explain.


99. TEMPERATURE EXTREMES The highest and
    lowest temperatures ever recorded in several cities
    are shown below. List the cities in order, from the
    largest to smallest range in temperature extremes.

W a l k e r C o r p o r a t i o n

Balance Sheet 2010

Assets

Cash

Supplies

Land

Total assets

Debts

Accounts payable

Income taxes

Total debts

$ 11 1 0 9

7 8 6 2

67 5 4 3

$79 0 3 7

20 1 8 1

$

$

101. FREEZE DRYING To make
     freeze-dried coffee, the coffee
     beans are roasted at a temperature
     of 360°F and then the ground
     coffee bean mixture is frozen at a
     temperature of. What is
     the temperature range of the
     freeze-drying process?


102. WEATHER Rashawn flew from his New York
     home to Hawaii for a week of vacation. He left
     blizzard conditions and a temperature of , and
     stepped off the airplane into 85°F weather. What
     temperature change did he experience?


103. READING PROGRAMS In a state reading test
     given at the start of a school year, an elementary
     school’s performance was 23 points below the county
     average. The principal immediately began a special
     tutorial program. At the end of the school year,
     retesting showed the students to be only 7 points
     below the average. How did the school’s reading
     score change over the year?


104. LIE DETECTOR TESTS On one lie detector test,
     a burglar scored , which indicates deception.
     However, on a second test, he scored , which is
     inconclusive. Find the change in his scores.

WRITING

105. Explain what is meant when we say that subtraction
     is the same as addition of the opposite.


106. Give an example showing that it is possible to
     subtract something from nothing.


107. Explain how to check the result:


108. Explain why students don’t need to change every
     subtraction they encounter to an addition of the
     opposite. Give some examples.

REVIEW

109. a. Round 24,085 to the nearest ten.
     b. Round 5,999 to the nearest hundred.


110. List the factors of 20 from least to greatest.


111. It takes 13 oranges to make one can of orange juice.
     Find the number of oranges used to make 12 cans.


112. a. Find the LCM of 15 and 18.
     b. Find the GCF of 15 and 18.

 7  4  11

 1

 18

6°F

110°F

Nearsighted

–2

Farsighted

+4

164 Chapter 2 The Integers

City Highest Lowest

Atlantic City, NJ 106

Barrow, AK 79

Kansas City, MO 109

Norfolk, VA 104

Portland, ME 103  39

 3

 23

 56

 11

Extreme Temperatures

100. EYESIGHTNearsightedness,the condition where
     near objects are clear and far objects are blurry, is
     measured using negative numbers. Farsightedness,
     the condition where far objects are clear and near
     objects are blurry, is measured using positive
     numbers. Find the range in the measurements
     shown in the next column.

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