1.5.3: Exercises
- Page ID
- 82928
\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)
Section 1.5.2 Exercises
- Solve:
- \(\dfrac{2}{5}=\dfrac{6}{x}\)
- \(\dfrac{2x}{9}=\dfrac{3}{10}\)
- \(\dfrac{x}{12}=\dfrac{2}{3}\)
- \(\dfrac{4}{9x}=\dfrac{10}{13}\)
- \(\dfrac{n}{5}=\dfrac{16}{20}\).
- Find a unit rate: You bought 10 pounds of potatoes for $4.
- Find a unit rate: Joel ran 1500 meters in 4 minutes, 45 seconds.
- Which is the more economical purchase: 32 oz of detergent for $6.29 or 48 oz of the same detergent for $8.29?
- Solve the proportion.
- \(\dfrac{3}{25} =\dfrac{ x}{3000}\)
- \(\dfrac{5}{8} = \dfrac{200}{x}\)
- A student scored 32 out of 40 on a practice exam and 12 out of 15 on the actual exam. Did the student do better on the practice exam or on the actual exam?
- A soft drink is sold in a six-pack of plastic bottles holding 101.4 fl oz for $2.69. The same soft drink can be purchased in a 12-pack of cans containing 144 fl oz for $3.79. Which is the better buy?