Answers:
- Choice A
- The class needs to sell [tex]3[/tex] cookies to earn 39 cents.
Step-by-step explanation:
Please refer to my answer from this question to know more about writing a scenario from a given scenario: brainly.com/question/24599307
Scenario: A class is having a bake sale. The class earns 13 cents for each cookie sold.
We let the number of cookies sold as [tex]x[/tex] and we let the number of earned cents as [tex]y[/tex].
If the class sold [tex]x[/tex] cookies then they will earn [tex]13x[/tex] cents. We, therefore, have the equation that describes the relationship between the number of cookies sold, [tex]x[/tex], and the number of cents earned, [tex]y[/tex], as [tex]y = 13x[/tex].
Note: Since the class can't sell half a cookie or [tex]0.8239[/tex] cookies then, in our graph, [tex]x[/tex] must account for all natural numbers only.
Graphs A and D graphs [tex]y = 13x[/tex] but [tex]x[/tex] on graph D accounts for all nonnegative real numbers.
So the correct graph must be Graph A as its [tex]x[/tex] accounts for all natural numbers only.
[tex]\rule{6cm}{0.4pt}[/tex]
We are also asked to calculate the number of cookies sold to earn [tex]39[/tex] cents. This is essentially solving for [tex]x[/tex] from the equation, [tex]y = 13x \text { when } y = 39[/tex].
[tex]39 = 13x \\ 13x = 39 \\ x = \frac{39}{13} \\ x = 3[/tex]
