Basic Mathematics for College Students

(Nandana) #1

Complete each table.







    1. NEW HOMES Find the cost to build the home
      shown below if construction costs are $92.55 per
      square foot.

    2. BIOLOGY Cells contain DNA. In humans, it
      determines such traits as eye color, hair color,
      and height. A model of DNA appears below. If
      1 Å (angstrom) 0.000000004 inch, find the
      dimensions of 34 Å, 3.4 Å, and 10 Å, shown in the
      illustration.




104. TACHOMETERS


a. Estimate the decimal number to which the
tachometer needle points in the illustration below.

b. What engine speed (in rpm) does the tachometer
indicate?

3 4 5
2

1

0

6

7

RPM x 1000 8

34 Å

3.4 Å

10 Å




House Plan #DP-2203
Square Feet:
Stories:

2,291 Sq Ft.
Single Story

70'70''
64'0''

3
3
2

Width:
Depth:

Bedrooms:
Bathrooms:
Garage Bays:

4.3 Multiplying Decimals 355

Decimal Its square
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9

Decimal Its cube
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9

APPLICATIONS



  1. REAMS OF PAPER Find the thickness of a
    500-sheet ream of copier paper if each sheet is
    0.0038 inch thick.

  2. MILEAGE CLAIMS Each month, a salesman is
    reimbursed by his company for any work-related
    travel that he does in his own car at the rate of
    $0.445 per mile. How much will the salesman receive
    if he traveled a total of 120 miles in his car on
    business in the month of June?

  3. SALARIES Use the following formula to
    determine the annual salary of a recording engineer
    who works 38 hours per week at a rate of $37.35 per
    hour. Round the result to the nearest hundred
    dollars.
    Annual
    


hourly


hours
salary rate per week52.2 weeks


  1. PAYCHECKS If you are paid every other week,
    your monthly gross income is your gross income
    from one paycheck times 2.17. Find the monthly
    gross income of a supermarket clerk who earns
    $1,095.70 every two weeks. Round the result to the
    nearest cent.

  2. BAKERY SUPPLIES A bakery buys various
    types of nuts as ingredients for cookies.
    Complete the table by filling in the cost of
    each purchase.


Type of Price
nut per pound Pounds Cost
Almonds $5.95 16
Walnuts $4.95 25
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