Prealgebra 2e

# Practice Test

Prealgebra 2ePractice Test

### Practice Test

In the following exercises, translate from an algebraic equation to English phrases.

434.

$6⋅46⋅4$

435.

$15−x15−x$

In the following exercises, identify each as an expression or equation.

436.

$5⋅8+105⋅8+10$

437.

$x+6=9x+6=9$

438.

$3⋅11=333⋅11=33$

439.
1. Write $n⋅n⋅n⋅n⋅n⋅nn⋅n⋅n⋅n⋅n⋅n$ in exponential form.
2. Write $3535$ in expanded form and then simplify.

In the following exercises, simplify, using the order of operations.

440.

$4+3⋅54+3⋅5$

441.

$(8+1)⋅4(8+1)⋅4$

442.

$1+6(3−1)1+6(3−1)$

443.

$(8+4)÷3+1(8+4)÷3+1$

444.

$(1+4)2(1+4)2$

445.

$5[2+7(9−8)]5[2+7(9−8)]$

In the following exercises, evaluate each expression.

446.

$8x−3whenx=48x−3whenx=4$

447.

$y3wheny=5y3wheny=5$

448.

$6a−2bwhena=5,b=76a−2bwhena=5,b=7$

449.

$hwwhenh=12,w=3hwwhenh=12,w=3$

450.

Simplify by combining like terms.

1. $6x+8x6x+8x$
2. $9m+10+m+39m+10+m+3$

In the following exercises, translate each phrase into an algebraic expression.

451.

$55$ more than $xx$

452.

the quotient of $1212$ and $yy$

453.

three times the difference of $aandbaandb$

454.

Caroline has $33$ fewer earrings on her left ear than on her right ear. Call the number of earrings on her right ear, $r.r.$ Write an expression for the number of earrings on her left ear.

In the following exercises, solve each equation.

455.

$n−6=25n−6=25$

456.

$x+58=71x+58=71$

In the following exercises, translate each English sentence into an algebraic equation and then solve it.

457.

$1515$ less than $yy$ is $32.32.$

458.

the sum of $aa$ and $129129$ is $164.164.$

459.

List all the multiples of $44$ that are less than $50.50.$

460.

Find all the factors of $90.90.$

461.

Find the prime factorization of $1080.1080.$

462.

Find the LCM (Least Common Multiple) of $2424$ and $40.40.$