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Pre-Algebra > Chapter 7.1 - 7.6 > Flashcards

Chapter 7.1 - 7.6 Flashcards

1
Q

Define Commission

A

Commission is a percentage of total sales as determined by the RATE of commission.

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2
Q

Define Discount

A

An amount of discount is a percent off the original price, determined by the discount rate.

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3
Q

Define Additive Identity

A

The Additive Identify is 0. When zero is added to any number, it does not change the value.

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4
Q

Define Additive Inverse

A

The opposite of a number is its Additive Inverse. The additive inverse of “a” is “-a”.

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5
Q

Define Irrational Number

A

An Irrational Number is a number that cannot be written as the ratio of two integers. Its decimal form does not stop and does not repeat.

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6
Q

Define Multiplicative Identity

A

The Multiplicative Identity is 1. Whe one multiplies any number, it does not change the value.

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7
Q

Define Multiplicative Inverse

A

The reciprocal of a number is its Multiplicative Inverse. The multiplicative inverse of “a” is “1/a”.

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8
Q

Define Rational number

A

A Rational Number is a number that can be written in the form “p/q”, where “p” and “q” are integers and “q does not equal 0”. Its decimal form stops or repeats.

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9
Q

Define Real number

A

A Real Number is a number that is either rational or irrational.

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10
Q

Real Numbers

A

Are made up of Rational Numbers and Irrational Numbers. Real Numbers include on one side, Rational Numbers comprised of: Counting Numbers + Whole Numbers + Integers + Rational Numbers. On the other side, Irrational Numbers.

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11
Q

What is the Commutative Property of Addition?

A

If a,b are real numbers, then a + b = b + a.

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12
Q

What is the Commutative Property of Multiplication?

A

If a,b are real numbers, then a x b = b x a.

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13
Q

What is the Associative Property of Addition?

A

If a,b are real numbers, then (a + b) + c = a + (b + c).

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14
Q

What is the Associative Property of Multiplication?

A

If a,b are real numbers, then (a x b) x c = a x (b x c).

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15
Q

Example of Distributive Property, If a,b,c are real numbers, then…

A
  1. a(b + c) = ab + ac; 2. (b + c)a = ba + ca; 3. a(b-c) = ab - ac.
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16
Q

Example of Identity Property of Addition

A

For any real number a: a + 0 = a. 0 + a = a; 0 is the additive identity.

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17
Q

Example of Identity Property of Multiplication

A

For any real number a: a x 1 = a. 1 x a = a; 0 is the multiplicative identity.

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18
Q

Example of Inverse Property of Addition

A

For any real number a: a + (-a) = 0. “-a” is the Additive Inverse of a.

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19
Q

Example of Inverse Property of Multiplication

A

For any real number a: (“a does not equal 0) a x “(1/a)” = 1 “(1/a)” the multiplicative inverse of a.

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20
Q

Properties of Zero: Multiplication by Zero:

A

For any real number a: a x 0 = 0; 0 x a = 0; The product of any number and 0 equals zero.

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21
Q

Properties of Zero: Division “OF” Zero:

A

For any real number a: “0/a” = 0; Zero divided by any real number, except itself, is zero.

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22
Q

Properties of Zero: Division “BY” Zero:

A

For any real number a: “a/0” is undefined and a divided by 0 is undefined. Division by zero is undefined.

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23
Q

How many inches (in) are in 1 foot (ft)

A

12 inches

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24
Q

How many feet (ft) are in 1 yard (yd)

A

3 feet (ft) in 1 yard (yd)

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25
Q

How many feet (ft) are in 1 mile (mi)

A

5,280 feet (ft) in 1 mile (mi)

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26
Q

How many teaspoons (t) are in 1 tablespoon (T)

A

3 teaspoons (t) in 1 tablespoon (T)

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27
Q

How many Tablespoons are in 1 cup (c)

A

16 Tablespoons (T) in 1 cup (c)

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28
Q

How many fluid ounces (fl oz) in 1 cup (c)

A

8 fluid ounces (fl oz) in 1 cup (c)

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29
Q

How many cups (c) in 1 pint (pt)

A

2 cups (c) in a pint (pt)

30
Q

How many pints (pt) in 1quart (qt)

A

2 pints (pt) in 1quart (qt)

31
Q

How many quarts (qt) in 1 gallon (g)

A

4 quarts (qt) in 1 gallon (g)

32
Q

How many ounces (oz) are in 1 pound (lb)

A

16 ounces (oz) are in 1 pound (lb)

33
Q

How many pounds (lb) are in 1 ton

A

2000 pounds (lb) are in 1 pound (lb)

34
Q

How many centimeters (cm) are in 1 meter (m)

A

100 centimeters (cm) are in 1 meter (m)

35
Q

How many millimeters (mm) are in 1 meter (m)

A

1000 millimeters (mm) are in 1 meter (m)

36
Q

How many meters (m) are in 1 kilometer (km)

A

1000 meters (m) are in 1 kilometer (km)

37
Q

How many meters (hm) are in 1 hectometer (hm)

A

100 meters (hm) are in 1 hectometer (hm)

38
Q

How many meters (m) are in 1 dekameter (dam)

A

10 meters (m) are in 1 dekameter (dam)

39
Q

How many meters (m) are in 1 decimeter (dm)

A

0.1 meter (m) are in 1 decimeter (dm)

40
Q

How many meters (m) are in 1 centimeter (cm)

A

0.01 meters (m) are in 1 centimeter (cm)

41
Q

How many meters (m) are in 1 millimeter (mm)

A

0.001 meters (mm) are in 1 millimeter (mm)

42
Q

How many grams (gr) are in 1 kilogram (kg)

A

1000 (g) are in 1 kilogram (kg)

43
Q

How many grams (gr) are in 1 hectogram (hg)

A

100 grams (g) are in 1 hectogram (hg)

44
Q

How many grams (g) are in 1 dekagram (dag)

A

10 grams (g) are in 1 dekagram (dag)

45
Q

How many grams (g) are in 1 decigram (dg)

A

0.1 grams (g) are in 1 decigram (dg)

46
Q

How many grams (g) are in 1 centigram (cg)

A

0.01 grams (g) are in 1 centigram (cg)

47
Q

How many grams (g) are in 1 milligram (mg)

A

0.001 grams (g) are in 1 milligram (mg)

48
Q

How many centigrams (cg) are in 1 gram (g)

A

100 centigrams (cg) are in 1 gram (g)

49
Q

How many milligrams (mg) are in 1 gram (g)

A

1000 milligrams (mg) are in 1 gram (g)

50
Q

How many centiliters (cL) are in 1 liter

A

100 centiliters (cL) are in 1 liter

51
Q

How many milliliters (mL) are in 1 liter (L)

A

1000 milliliters (mL) are in 1 liter (L)

52
Q

How many liters (L) are in 1 kiloliter (kL)

A

1000 liters (L) are in 1 kiloliter (kL)

53
Q

How many liters (L) are in 1 hectoliter (hL)

A

100 liters (L) are in 1 hectoliter (hL)

54
Q

How many liters (L) are in 1 deckaliter (daL)

A

10 liters (L) are in 1 deckaliter (daL)

55
Q

How many liters (L) are in 1 liter (L)

A

1 liters (L) are in 1 liter (L)

56
Q

How many liters (L) are in 1 deciliter (dL)

A

0.1 liters (L) are in 1 deciliter (dL)

57
Q

How many liters (L) are in 1 centiliter (cL)

A

0.01 liters (L) are in 1 centiliter (cL)

58
Q

How many liters (L) are in 1 milliliter (mL)

A

0.001 liters (L) are in 1 milliliter (mL)

59
Q

How many centimeters (cm) are in 1 inch (in)

A

2.54 centimeters (cm) are in 1 inch (in)

60
Q

How many meters (m) are in 1 foot (ft)

A

0.305 meters (m) are in 1 foot (ft)

61
Q

How many meters (m) are in 1 yard (yd)

A

0.914 meters (m) are in 1 yard (yd)

62
Q

How many kilometers (km) are in 1 mile (mi)

A

1.61 kilometers (km) are in 1 mile (mi)

63
Q

How many kilograms (kg) are in 1 pound (lb)

A

0.45 kilograms (kg) are in 1 pound (lb)

64
Q

How many grams (g) are in 1 ounce (oz)

A

28 grams (g) are in 1 ounce (oz)

65
Q

How many feet (ft) are in 1 meter (m)

A

3.28 feet (ft) are in 1 meter (m)

66
Q

How many pounds (lbs) are in 1 kilogram (kg)

A

2.2 pounds (lbs) are in 1 kilogram (kg)

67
Q

How many liters (L) are in 1 quart (qt)

A

0.95 liters (L) are in 1 quart (qt)

68
Q

How many milliliters (mL) are in 1 fluid ounce ( fl oz)

A

30 milliliters (mL) are in 1 fluid ounce (fl oz)

69
Q

How many quarts (qt) are in 1 liter (L)

A

1.06 quarts (qt) are in 1 liter (L)

70
Q

Formula to convert TO degrees Celcius (C) from degrees Fahrenheit (F)

A

C = (5/9) x (F - 32)

71
Q

Formula to convert TO degrees Fahrenheit (F) from degrees Celcius (C)

A

F = (9/5) x (C + 32)

Pre-Algebra (9 decks)

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