Skip to main content
Mathematics LibreTexts

2.2: Unit 2 Review- Percent

  • Page ID
    101239

    \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)

    \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)

    \( \newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\)

    ( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\)

    \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\)

    \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\)

    \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\)

    \( \newcommand{\Span}{\mathrm{span}}\)

    \( \newcommand{\id}{\mathrm{id}}\)

    \( \newcommand{\Span}{\mathrm{span}}\)

    \( \newcommand{\kernel}{\mathrm{null}\,}\)

    \( \newcommand{\range}{\mathrm{range}\,}\)

    \( \newcommand{\RealPart}{\mathrm{Re}}\)

    \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\)

    \( \newcommand{\Argument}{\mathrm{Arg}}\)

    \( \newcommand{\norm}[1]{\| #1 \|}\)

    \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\)

    \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\AA}{\unicode[.8,0]{x212B}}\)

    \( \newcommand{\vectorA}[1]{\vec{#1}}      % arrow\)

    \( \newcommand{\vectorAt}[1]{\vec{\text{#1}}}      % arrow\)

    \( \newcommand{\vectorB}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)

    \( \newcommand{\vectorC}[1]{\textbf{#1}} \)

    \( \newcommand{\vectorD}[1]{\overrightarrow{#1}} \)

    \( \newcommand{\vectorDt}[1]{\overrightarrow{\text{#1}}} \)

    \( \newcommand{\vectE}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{\mathbf {#1}}}} \)

    \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)

    \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)

    \(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)

     

    Questions

    1. Change these decimals to percents.
      1. \(0.75\)
      2. \(0.156\)
      3. \(0.03\)
      4. \(0.0035\)
      5. \(0.625\)
      6. \(0.048\)
      7. \(3.45\)

       

    2. Change each percent to a decimal.
      1. \(59\%\)
      2. \(39.5\%\)
      3. \(1\%\)
      4. \(3\dfrac{1}{2}\%\)
      5. \(1\dfrac{4}{5}\%\)
      6. \(4\dfrac{3}{5}\%\)

       

    3. Change each fraction to an equivalent percent.
      1. \(1\dfrac{3}{4}\)
      2. \(\dfrac{1}{5}\)
      3. \(4\dfrac{3}{20}\)
      4. \(\dfrac{9}{20}\)
      5. \(2\dfrac{1}{3}\)

       

    4. Change each percent to a common fraction. Simplify your answer.
      1. \(16\%\)
      2. \(25\%\)
      3. \(110\%\)
      4. \(95\%\)
      5. \(650\%\)
      6. \(284\%\)
      7. \(\dfrac{1}{4}\%\)
      8. \(\dfrac{1}{8}\%\)
      9. \(0.125\%\)
      10. \(\dfrac{5}{8}\%\)
      11. \(\dfrac{3}{4}\%\)

       

    5. Change each percent to a common fraction. These few should be memorized.
      1. \(33\dfrac{1}{3}\%\)
      2. \(66\dfrac{2}{3}\%\)
      3. \(16\dfrac{2}{3}\%\)
      4. \(83\dfrac{1}{3}\%\)

       

    Answers to Unit 2 Review

      1. \(75\%\)
      2. \(15.6\%\)
      3. \(3\%\)
      4. \(0.35\%\)
      5. \(62.5\%\)
      6. \(4.8\%\)
      7. \(345\%\)
      1. \(0.59\)
      2. \(0.395\)
      3. \(0.01\)
      4. \(0.035\)
      5. \(0.018\)
      6. \(0.046\)
      1. \(175\%\)
      2. \(20\%\)
      3. \(415\%\)
      4. \(45\%\)
      5. \(233.3\%\)
      1. \(\dfrac{4}{25}\)
      2. \(\dfrac{1}{4}\)
      3. \(1\dfrac{1}{10}\)
      4. \(\dfrac{19}{20}\)
      5. \(6\dfrac{1}{2}\)
      6. \(2\dfrac{21}{25}\)
      7. \(\dfrac{1}{400}\)
      8. \(\dfrac{1}{800}\)
      9. \(\dfrac{0.125}{100}\) or \(\dfrac{1}{800}\)
      10. \(\dfrac{0.7}{100}\) or \(\dfrac{7}{1000}\)
      11. \(\dfrac{3}{400}\)
      1. \(\dfrac{1}{3}\)
      2. \(\dfrac{2}{3}\)
      3. \(\dfrac{1}{6}\)
      4. \(\dfrac{5}{6}\)

     

    TEST TIME!

    Ask your instructor for the Practice Test for this unit.

    Once you’ve done the Practice Test, you need to do the Unit 2 test.

    Again, ask your instructor for this.

    Good luck!

     

    This page titled 2.2: Unit 2 Review- Percent is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by via source content that was edited to the style and standards of the LibreTexts platform.

    • Was this article helpful?