6 A store is having a sale with \( 10 \% \) off everything. a. Write an equation to show the sale price \( s \) of an item given its regular price \( r \). \[ \begin{array}{l} \text { item given its regular pricer. } \\ \zeta=0.0 .10 \mathrm{~S}=0.90 \mathrm{P} \end{array} \] b. Does your equation represent a proportional relationship? Explain.
Added by Darnell C.
Close
Step 1
- The regular price of an item is \( r \). - The discount is \( 10\% \) of the regular price, which is \( 0.10r \). Show more…
Show all steps
Your feedback will help us improve your experience
Ramesh Rajak and 84 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Decide whether each table could represent a proportional relationship. If the relationship could be proportional, what would be the constant of proportionality? a. Annie's Attic is giving away $\$ 5$ off coupons. \begin{tabular}{|c|c|} \hline original price & sale price \\ \hline$\$ 15$ & $\$ 10$ \\ \hline$\$ 25$ & $\$ 20$ \\ \hline$\$ 35$ & $\$ 30$ \\ \hline \end{tabular} b. Bettie's Boutique is having a $20 \%$ off sale. \begin{tabular}{|c|c|} \hline original price & sale price \\ \hline$\$ 15$ & $\$ 12$ \\ \hline$\$ 25$ & $\$ 20$ \\ \hline$\$ 35$ & $\$ 28$ \\ \hline \end{tabular}
Rational Number Arithmetic
Changing Elevation
The store is having a sale where all jeans are $\frac{1}{4}$ off the sale price. Write an equation relating the sale price to the regular price. How much would a pair of $\$ 29$ jeans be on sale?
Ratio, Proportion, and Percent
Proportional and Nonproportional Relationships
Constants of Proportionality Express the statement as an equation. Use the given information to find the constant of proportionality. $$\begin{array}{l}{S \text { is proportional to the product of } p \text { and } q . \text { If } p=4 \text { and }} \\ {q=5, \text { then } S=180}\end{array}$$
Equations and Graphs
Modeling Variation
Recommended Textbooks
Elementary and Intermediate Algebra
Algebra and Trigonometry
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD