We are open Saturday and Sunday!

Call Now to Set Up Tutoring:

(888) 888-0446

ISEE Upper Level Quantitative : How to add variables

Study concepts, example questions & explanations for ISEE Upper Level Quantitative

Create An Account

All ISEE Upper Level Quantitative Resources

8 Diagnostic Tests 234 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #11 : How To Add Variables

is a negative integer. Which is the greater quantity?

(A) 100 - (X + 25 )

(B) (100 - X )+ 25

Possible Answers:

(a) is the greater quantity

(b) is the greater quantity

(a) and (b) are equal

It cannot be determined which of (a) and (b) is greater

Correct answer:

(b) is the greater quantity

Explanation:

100 - (X + 25 )

=100 - X - 25

=75 - X

(100 - X )+ 25

= 100 - X + 25

= 125 - X

125 > 75 , so

125 -X > 75 - X

and

(100 - X )+ 25 is the greater quantity, regardless of .

Report an Error

Example Question #45 : Operations

is a positive number.

Which is the greater quantity?

(a) |7x - 9|

(b) |9x - 7|

Possible Answers:

(a) and (b) are equal

It cannot be determined which of (a) and (b) is greater

(b) is the greater quantity

(a) is the greater quantity

Correct answer:

It cannot be determined which of (a) and (b) is greater

Explanation:

By examining two scenarios, we see that we cannot determine which is the greater quantity.

Case 1: $x = \frac{1}{2}$

Then $|7x - 9| =\left | 7 \cdot \frac{1}{2}- 9 \right |= \left | 3 \frac{1}{2}- 9 \right |= \left | -5 \frac{1}{2} \right |=5 \frac{1}{2}$

and $|9x - 7|=\left | 9 \cdot \frac{1}{2}- 7 \right |= \left | 4 \frac{1}{2}- 7 \right |= \left | -2 \frac{1}{2} \right |=2 \frac{1}{2}$

This makes (a) the greater quantity.

Case 2: x= 2

This makes (b) the greater quantity.

Report an Error

Example Question #41 : Variables

is a negative number.

Which is the greater quantity?

(a) |7-11x|

(b) |11x - 7|

Possible Answers:

(a) and (b) are equal

(a) is the greater quantity

(b) is the greater quantity

It cannot be determined which of (a) and (b) is greater

Correct answer:

(a) and (b) are equal

Explanation:

- (7-11x ) = - 7 + 11x = 11x -7

The expressions 7 - 11x and 11x-7 are each other's opposite, so they have the same absolute value. Therefore, regardless of the value of ,

|7-11x| = |11x - 7| .

Report an Error

Example Question #891 : Isee Upper Level (Grades 9 12) Quantitative Reasoning

is a negative integer. Which is the greater quantity?

(A) $10 + X \div 5$

(B) $(10 + X )\div 5$

Possible Answers:

(b) is the greater quantity

It cannot be determined which of (a) and (b) is greater

(a) is the greater quantity

(a) and (b) are equal

Correct answer:

(a) is the greater quantity

Explanation:

$10 + X \div 5 = 10 + \frac{X}{5}$

$(10 + X )\div 5 = \frac{(10 + X )}{5} = 2 + \frac{X}{5}$

10 > 2 ,

$10 + \frac{X}{5}> 2 + \frac{X}{5}$

and

$10 + X \div 5> (10 + X )\div 5$ regardless of the value of .

Report an Error

Example Question #42 : Variables

is a negative integer. Which is the greater quantity?

(a) 3X + 10

(b) 3(X+10)

Possible Answers:

It cannot be determined which of (a) and (b) is greater

(a) and (b) are equal

(b) is the greater quantity

(a) is the greater quantity

Correct answer:

(b) is the greater quantity

Explanation:

$3(X+10) = 3 \cdot X + 3 \cdot 10 = 3X + 30$

Since

30 > 10 ,

it follows that

3X+ 30 > 3X+ 10

and

3(X+10) > 3 X+10

regardless of the value of .

Report an Error

Example Question #51 : Operations

Which is the greater quantity?

(b) $(-7) \cdot x+ (-4)$

Possible Answers:

(b) is the greater quantity

(a) and (b) are equal

(a) is the greater quantity

It cannot be determined which of (a) and (b) is greater

Correct answer:

(a) is the greater quantity

Explanation:

Suppose is nonnegative.

Then |x| = x .

Consequently,

which must be positive,

and

$(-7) \cdot x+ (-4) = -7x-4$ ,

which is the opposite of 7 x +4 and consequently must be negative. Therefore, (a) is greater.

Suppose is negative.

Then |x| = -x .

Consequently,

and

$(-7) \cdot x+ (-4) = -7x-4$ .

4 > -4 , so

-7x+4> -7x-4 ,

and (a) is greater.

(a) is the greater quantity either way.

Report an Error

Example Question #52 : Variables

Define f (x) = 3x . The graph of g(x) is a line with slope $\frac{1}{2}$ .

$(g \circ f) (2) = 6$ .

Which is the greater quantity?

(a) f(2)

(b) g(2)

Possible Answers:

It is impossible to determine which is greater from the information given

(a) is the greater quantity

(b) is the greater quantity

(a) and (b) are equal

Correct answer:

(a) is the greater quantity

Explanation:

f (x) = 3x , so $f (2) = 3 \cdot 2 = 6$ .

$(g \circ f) (2) = 6$ , so, by definition, g[ f (2) ] = 6 , or g(6) = 6 .

The graph of g(x) is a line through the point with coordinates (6,6) and with slope $\frac{1}{2}$ . The equation of the line can be determined by setting $g(x) = x = 6 , m = \frac{1}{2}$ in the slope-intercept form:

g(x) = mx+ b

$6 = \frac{1}{2} \cdot 6+ b$

6= 3+ b

b = 3 .

The equation of the line is $g(x) = \frac{1}{2} x+ 3$ , which makes this the definition of g(x) . By setting x= 2 ,

$g(2) = \frac{1}{2} \cdot 2+ 3 = 1 + 3 = 4$ .

Therefore, f(2)> g(2)

Report an Error

Example Question #13 : How To Add Variables

x- y = 125 ; and are both positive.

Which is the greater quantity?

(a) | y - x|

(b) | y + x|

Possible Answers:

(a) and (b) are equal

It is impossible to determine which is greater from the information given

(b) is the greater quantity

(a) is the greater quantity

Correct answer:

(b) is the greater quantity

Explanation:

If x- y = 125 ,

then

y - x = - (x-y) = -125 .

The absolute value of a negative number is its (positive) opposite, so

|y - x |= | -125| = 125

Also, if and are both positive, then y + x is positive; the absolute value of a positive number is the number itself, so | y + x| = y+ x . Since x- y = 125 , it follows that x = 125 + y . Therefore,

| y + x| = y+ x = y + (125+y ) = 125 + 2y

Since is given to be positive,

125 + 2y > 125 .

and

| y + x| > |y - x|

Report an Error

View Tutors

Gabby
Certified Tutor

University of Oregon, Bachelor in Arts, Journalism. University of Oregon, Current Grad Student, Communication, General.

View Tutors

Ana
Certified Tutor

Grand Canyon University, Bachelors, Education. Grand Canyon University, Masters, Education.

View Tutors

Crystal
Certified Tutor

SUNY at Binghamton, Bachelor of Science, Mechanical Engineering.

All ISEE Upper Level Quantitative Resources

8 Diagnostic Tests 234 Practice Tests Question of the Day Flashcards Learn by Concept

Popular Subjects

MCAT Tutors in Washington DC, ACT Tutors in Los Angeles, English Tutors in Denver, Calculus Tutors in San Diego, ACT Tutors in Philadelphia, SAT Tutors in Chicago, French Tutors in New York City, MCAT Tutors in Dallas Fort Worth, SAT Tutors in San Francisco-Bay Area, Spanish Tutors in Washington DC

Popular Courses & Classes

ISEE Courses & Classes in Seattle, GMAT Courses & Classes in Denver, SAT Courses & Classes in Houston, GMAT Courses & Classes in Philadelphia, GRE Courses & Classes in Washington DC, ACT Courses & Classes in Atlanta, GRE Courses & Classes in Chicago, LSAT Courses & Classes in Phoenix, SAT Courses & Classes in Los Angeles, SAT Courses & Classes in San Diego

Popular Test Prep

ISEE Test Prep in Seattle, ACT Test Prep in San Francisco-Bay Area, SAT Test Prep in Dallas Fort Worth, LSAT Test Prep in San Diego, GMAT Test Prep in Denver, SAT Test Prep in Chicago, MCAT Test Prep in Philadelphia, GRE Test Prep in Los Angeles, GRE Test Prep in Chicago, GRE Test Prep in Seattle

DMCA Complaint

If you believe that content available by means of the Website (as defined in our Terms of Service) infringes one or more of your copyrights, please notify us by providing a written notice (“Infringement Notice”) containing the information described below to the designated agent listed below. If Varsity Tutors takes action in response to an Infringement Notice, it will make a good faith attempt to contact the party that made such content available by means of the most recent email address, if any, provided by such party to Varsity Tutors.

Your Infringement Notice may be forwarded to the party that made the content available or to third parties such as ChillingEffects.org.

Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially misrepresent that a product or activity is infringing your copyrights. Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney.

Please follow these steps to file a notice:

You must include the following:

A physical or electronic signature of the copyright owner or a person authorized to act on their behalf; An identification of the copyright claimed to have been infringed; A description of the nature and exact location of the content that you claim to infringe your copyright, in \ sufficient detail to permit Varsity Tutors to find and positively identify that content; for example we require a link to the specific question (not just the name of the question) that contains the content and a description of which specific portion of the question – an image, a link, the text, etc – your complaint refers to; Your name, address, telephone number and email address; and A statement by you: (a) that you believe in good faith that the use of the content that you claim to infringe your copyright is not authorized by law, or by the copyright owner or such owner’s agent; (b) that all of the information contained in your Infringement Notice is accurate, and (c) under penalty of perjury, that you are either the copyright owner or a person authorized to act on their behalf.

Send your complaint to our designated agent at:

Charles Cohn Varsity Tutors LLC
101 S. Hanley Rd, Suite 300
St. Louis, MO 63105

Or fill out the form below:

Do not fill in this field

Contact Information

* Full legal name

Company name

* Phone number

* Email address

Address

* Address1

Address2

* City

* State

* Zipcode

* Country

Complaint Details

* URL of copyrighted work (where your original material is located)

* Please describe the copyrighted work so that it may be easily identified

I am the owner, or an agent authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.

I have a good faith belief that the use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law.

This notification is accurate.

I acknowledge that there may be adverse legal consequences for making false or bad faith allegations of copyright infringement by using this process.

* Signature (your digital signature is legally binding)

HIGH SCHOOL

GRADUATE SCHOOL

K-8

Search 50+ Tests

math tutoring

science tutoring

foreign languages

elementary tutoring

other

Search 350+ Subjects

ISEE Upper Level Quantitative : How to add variables

Study concepts, example questions & explanations for ISEE Upper Level Quantitative

All ISEE Upper Level Quantitative Resources

Example Questions

Example Question #11 : How To Add Variables

Example Question #45 : Operations

Example Question #41 : Variables

Example Question #891 : Isee Upper Level (Grades 9 12) Quantitative Reasoning

Example Question #42 : Variables

Example Question #51 : Operations

Example Question #52 : Variables

Example Question #13 : How To Add Variables

All ISEE Upper Level Quantitative Resources

Report an issue with this question

DMCA Complaint

Contact Information

Address

Complaint Details

Email address:
Your name:
Feedback: