Deck 5: Equations

Question 1

In the equation X + 8 = 44, X is called the unknown.

Answer 1

True

Question 2

When solving an equation with a parenthetic expression, the first step is to remove the parenthese? by multiplying each term within the parentheses by the number to the left of the parentheses.

Answer 2

True

Question 3

There is only one method used to solve all word problems.

Answer 3

False

Question 4

An equation is a statement that uses a division sign.

Question 5

When solving 7D + 4 = 60, you would first subtract 4 from both sides of the equation.

Question 6

Mark's age five years ago could be written as M - 5.

Question 7

When writing an equation, unknown quantities are represented by:

A) parentheses
B) numbers
C) symbols
D) letters

Question 8

The term AB means to multiply A by B.

Question 9

The word "difference" in a problem generally means to use division to find the unknown value.

Question 10

Any statement that uses an equal sign is called a(n):

A) equation
B) variable
C) symbol
D) unknown quantity

Question 11

Twice Kayla's age can be represented by 4K.

Question 12

If an equation indicates multiplication, you would perform subtraction to isolate the variable.

Question 13

A letter or symbol that represents one or more unknown values is a(n):

A) constant
B) equation
C) known
D) variable

Question 14

The verb in a word problem connects the unknown quantity with the known quantity and stands for:

A) subtraction
B) multiplication
C) addition
D) equals

Question 15

If more than one unknown occurs in a word problem, the same variable may be used for expressions that represent each unknown.

Question 16

An equation is:

A) a mathematical expression of equality
B) a mathematical unknown
C) an expression of a mathematical inequality
D) a mathematical expression of constants

Question 17

If an equation indicates addition in its presentation, in order to solve for the unknown you must:

A) subtract
B) divide
C) multiply
D) add

Question 18

In an equation containing an addition and a multiplication operation, you should first undo addition and then undo multiplication.

Question 19

Most of the time that you see the word "of" in a word problem, you can assume the problem involves:

A) division
B) addition
C) multiplication
D) subtraction

Question 20

The equation X / Y = 7 means X divided by Y equals 7.

Question 21

In a word problem, the verb normally stands for the equal sign.

Question 22

Sonja plans to save 1 / 10 of her salary each week, which is $350.To solve this problem use:

A) division
B) subtraction
C) addition
D) multiplication

Question 23

Only numerals can be variables.

Question 24

In an equation, unknown quantities are called:

A) variables
B) constants
C) symbolic statements
D) fraction bars

Question 25

If a parenthetic expression is a part of an equation, you remove the parentheses by each term within the parentheses by the number to the left of the parentheses.

A) dividing
B) subtracting
C) adding
D) multiplying

Question 26

17 + 7 = C is a statement of equality.

Question 27

To isolate a variable, you perform the opposite mathematical operation of the given operation to both sides of the equation.

Question 28

In an equation, unknown quantities are called differences.

Question 29

What you do to one side of an equation, you must do to the other.

Question 30

When an equation contains addition, the variable can be isolated by performing the opposite process (subtraction).

Question 31

Known quantities in an equation are represented by letters.

Question 32

The first step in solving the equation 2B - 5 = 3 is to isolate 2B.

Question 33

In an equation, unknown quantities are represented by and known quantities by .

A) letters, numbers
B) variables, letters
C) letters, variables
D) numbers, integers

Question 34

When solving the equation 3(B - 2) = 9, first add 2 to each side of the equation.

Question 35

In solving the following equation 3A + 1 = 16:

A) multiply, then divide
B) add, then subtract
C) subtract, then divide
D) subtract, then multiply

Question 36

If an unknown is used in an equation and no coefficient is in front of a letter, it is understood to be a(n):

A) 0
B) unknown
C) 10
D) 1

Question 37

In word problems a multiplication sign is sometimes indicated by the word "of"

Question 38

In the problem statement "2 / 5 of the staff received a pay raise," the word "of" indicates the use of subtraction in calculating the solution.

Question 39

If there is no sign of operation between a number and a letter, a number and a parenthesis, or two letters, it means:

A) multiplication
B) division
C) subtraction
D) addition

Question 40

When solving an equation containing more than one operation or step, you first perform addition and multiplication.

Question 41

The product of the numerator of one fraction times the denominator of the other fraction of a proportion is called a:

A) ratio
B) cross product
C) proportion
D) equation

Question 42

If an equation indicates subtraction, you would perform addition to both sides of the equation to isolate the variable.

Question 43

Which word does not share the same meaning as the other three?

A) less
B) total
C) plus
D) sum

Question 44

Performing systematic operations so that the variable is alone on one side of an equation is known as:

A) offsetting the variable
B) a change to new variables
C) isolating the variable
D) an offset with new variables

Question 45

An equation is a mathematical expression of equality.

Question 46

When distributing 35 through the parenthetic expression 35(H - 8), only H is multiplied by 35.

Question 47

In solving the equation B / 6 = 35, you would divide both sides of the equation by 6.

Question 48

When solving an equation, you should attempt to isolate the unknown on the right side and the numbers / symbols on the left side.

Question 49

The specific order in which calculations must be performed to evaluate a series of calculations is referred to as:

A) the isolation of variables
B) multiple operations
C) the order of operations
D) orderly understanding of variables

Question 50

In an equation, variables are always represented by:

A) any letters may represent the variables
B) A, B, or C
C) X, Y, or Z
D) any numerals may represent the variables

Question 51

A hardware store spent $11,420 on print and TV advertising last year. If $\frac { 3 } { 5 }$ of that amount was spent on print advertising, how much was spent on TV advertising?

A) $6852
B) $18,272
C) $11,420
D) $4568

Question 52

The variable A is the same as 1A or 1 times A.

Question 53

On a map, the length of a nature-center trail is 6.6 centimeters. If the scale is 3 centimeters to 43 kilometers, what is the actual length of the trail?

A) 94.6 km
B) 189.2 km
C) 98.6 km
D) 95.6 km

Question 54

If solving an equation with more than one operation, you must first:

A) add or divide
B) add or subtract
C) subtract or multiply
D) multiply or divide

Question 55

The number in front of a letter, as in 5A, is called a:

A) variable
B) unknown
C) decimal
D) coefficient

Question 56

In the problem statement "the difference between Y and 17 is 22," the word "difference" indicates:

A) multiplication
B) subtraction
C) addition
D) division

Question 57

To solve an equation means to find the:

A) parenthetic value
B) unknown amount
C) symbolic amount
D) known quantities

Question 58

Variables are always represented by the letters A, B, or C.

Question 59

In an equation, unknown quantities are represented by letters and known quantities by numbers.

Question 60

What you do to one side of an equation:

A) should be offset on the other side
B) will result in a change to new variables
C) you must do to the other
D) should be offset with new variables

Question 61

Enrique borrowed $3600 to put a down payment on a motorcycle. The loan had a simple interest rate of 8% for 2 years. Use the formula I = prt to find the amount of interest he will pay on the loan. I = interest; p = principal; r = rate (expressed as a decimal 0.08); t = time in years.

A) $576
B) $288
C) $4176
D) $2880

Question 62

If 7 sandwich rolls cost $1.12, how much will 21 rolls cost?

A) $9.84
B) $3.36
C) $4.36
D) $7.84

Question 63

Ted runs a shoe store. His gross sales for the week were $5100 and his returns were $1400. What were Ted's net sales? Use the formula G = N + R, where G is gross sales, N is net sales, and R is returns.

A) $5100
B) $1400
C) $3700
D) $3900

Question 64

A label printer prints 4 pages of labels in 1.5 seconds. How long will it take to print 136 pages of labels?

A) 53 sec
B) 54 sec
C) 51 sec
D) 55 sec

Question 65

At a garage sale, the most expensive item was marked $25.00 more than the cheapest item. The sum of the two items was $26.90. Find the cost of the least expensive item.

A) $1.90
B) $22.10
C) $3.80
D) $26.90

Question 66

If a computer prints 6.9 lines in 3 seconds, how many lines can it print per minute?

A) 138 lines
B) 138.5 lines
C) 139 lines
D) 139.5 lines

Question 67

At a movie theater, 24 more people attended the early show than the late show. There were 252 people who saw the movie that night. How many people attended the late show?

A) 114
B) 228
C) 138
D) 276