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6.15: Bargain Shopping Extras

Difficulty Level: At Grade Created by: CK-12
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Extra for Experts - Bargain Shopping – Reason Proportionally

Use the facts on the signs. Figure out the better buy.

Which store has the better buy for 3 carnations? How did you decide?

Which store has the better buy for 3 mum plants? How did you decide?

Which store has the better buy for 9 bud vases? How did you decide?

Which store has the better buy for 6 pounds of potting soil? How did you decide?

Which store has the better buy on 7 bamboo shoots? How did you decide?

Which store has the better buy for 6 roses? How did you decide?

Extra for Experts - Bargain Shopping – Reason Proportionally

Solutions

\begin{align*}1. \quad \mathbf{Flower \ Mart; Flower \ Mart: \ 25 \div 5 = \$5/carnation, and \ 3 \times 5 = \$15.}\!\\ {\;} \quad \ \mathbf{\$15 < \$16.}\end{align*}

\begin{align*}2. \quad \mathbf{Blooms; Flower \ Mart: \ 22 \div 2 = \$11/mum \ plant, and \ 3 \times 11 = \$33.}\!\\ {\;} \quad \ \mathbf{\$31 < \$33.}\end{align*}

\begin{align*}3. \quad \mathbf{Blooms; Blooms: \ 32 \div 4 = \$8/bud \ vase, and \ 9 \times 8 = \$72.}\!\\ {\;} \quad \ \mathbf{\$72 < \$79.}\end{align*}

\begin{align*}4. \quad \mathbf{Flower \ Mart; Flower \ Mart: \ 48 \div 8 = \$6/pound, and \ 6 \times 6 = \$36.}\!\\ {\;} \quad \ \mathbf{\$36 < \$41.}\end{align*}

\begin{align*}5. \quad \mathbf{Blooms; Blooms: \ 70 \div 10 = \$7/bamboo \ shoot, and \ 7 \times 7 = \$49.}\!\\ {\;} \quad \ \mathbf{\$49 < \$50.}\end{align*}

\begin{align*}6. \quad \mathbf{Flower \ Mart; \ \frac{1}{2} \ dozen \ is \ 6 \ roses \ and \ 6 \ roses \ for \ \$15 \ means \ 12 \ roses \ for \ \$30.}\!\\ {\;} \quad \ \mathbf{\$30 < \$36.}\end{align*}

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