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ISEE Middle Level Math : Equations

Study concepts, example questions & explanations for ISEE Middle Level Math

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All ISEE Middle Level Math Resources

6 Diagnostic Tests 303 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #111 : Equations

$2^{2}*3^{2}=$

Possible Answers:

Correct answer:

Explanation:

First, solve the exponents:

$2^{2}=4$

$3^{2}=9$

Then, solve the equation:

4*9=36

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Example Question #112 : Equations

$5^{2}*4^2=$

Possible Answers:

400

Correct answer:

400

Explanation:

First, solve the exponents:

$5^{2}=25$

$4^{2}=16$

Then, solve the equation:

25*16=400

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Example Question #113 : Equations

6r*11r=

Possible Answers:

$611r^{2}$

$66r^{2}$

$5r^{3}$

$17r^{2}$

Correct answer:

$66r^{2}$

Explanation:

First, multiply the whole numbers.

Then, keep the variable the same and add an exponent totalling the number of variables in the equation:

$6r*11r=66r^{2}$

Answer: $66r^{2}$

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Example Question #114 : Equations

21s*15s=

Possible Answers:

$300s^{2}$

315s

$315s^{2}$

Correct answer:

$315s^{2}$

Explanation:

First, multiply the whole numbers.

Then, keep the variable the same and add an exponent totalling the number of variables in the equation:

$21s*15s=315s^{2}$

Answer: $315s^{2}$

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Example Question #115 : Equations

17r*7r=

Possible Answers:

$119r^{2}$

119r

$24r^{2}$

10r

Correct answer:

$119r^{2}$

Explanation:

Multiply the whole numbers, and raise the variable's exponent by one:

$17r*7r=119r^{2}$

Answer: $119r^{2}$

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Example Question #322 : Algebraic Concepts

Solve for :

2x+4=-2

Possible Answers:

x=-2

x=-1

x=-3

x=0

Correct answer:

x=-3

Explanation:

2x+4=-2

2x+4-4=-2-4

2x=-6

$\frac{2x}{2}=\frac{-6}{2}$

x=-3

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Example Question #323 : Algebraic Concepts

Solve for :

$-\frac{t}{4}+7=\frac{5}{2}$

Possible Answers:

t=38

t=18

t=8

t=-38

Correct answer:

t=18

Explanation:

$-\frac{t}{4}+7=\frac{5}{2}$

$4(-\frac{t}{4}+7)=4(\frac{5}{2})$

-t+28=10

-t+28-28=10-28

-t=-18

-1(-t)=-1(-18)

t=18

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Example Question #922 : Concepts

Solve for :

$\frac{n}{3}-4=2$

Possible Answers:

n=18

n=2

n=6

n=12

Correct answer:

n=18

Explanation:

$\frac{n}{3}-4=2$

$\frac{n}{3}-4+4=2+4$

$\frac{n}{3}=6$

$(3)(\frac{n}{3})=(6)(3)$

n=18

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Example Question #116 : Equations

Multiply: $17n\ast 3n=$

Possible Answers:

$51n^{2}$

$20n^{2}$

$34n^{2}$

$14n^{2}$

Correct answer:

$51n^{2}$

Explanation:

Multiply the whole numbers, and add an exponent to the variable totalling the amount of exponents in the equation:

$17n*3n=51n^{2}$

Answer: $51n^{2}$

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Example Question #117 : Equations

Multiply: 26s*10s=

Possible Answers:

$2610s^{2}$

$16s^{2}$

$260s^{2}$

$26s^{2}$

Correct answer:

$260s^{2}$

Explanation:

Multiply the whole numbers, adding an exponent to the variable totalling the amount of variables in the equation:

$26s*10s=260s^{2}$

Answer: $260s^{2}$

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All ISEE Middle Level Math Resources

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ISEE Middle Level Math : Equations

Study concepts, example questions & explanations for ISEE Middle Level Math

All ISEE Middle Level Math Resources

Example Questions

Example Question #111 : Equations

Example Question #112 : Equations

Example Question #113 : Equations

Example Question #114 : Equations

Example Question #115 : Equations

Example Question #322 : Algebraic Concepts

Example Question #323 : Algebraic Concepts

Example Question #922 : Concepts

Example Question #116 : Equations

Example Question #117 : Equations

All ISEE Middle Level Math Resources

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