9th Grade Math - Geometry
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Answer:
Equation: .
It would take Martina 37 hours to earn $518
Step-by-step explanation:
✍️An equation that shows a proportional relationship between the time she spends babysitting (x) and amount of money she earns for babysitting (y) can be represented as , where k = constant of proportionality.
Let's find k using any of the pairs given in the table of values. Let's use (1, 14).
Substitute x = 1, and y = 14 into , and find k.
Substitute k = 14 into .
✅The equation would be:
.
✍️Using the equation, we can find how many hours Martina needs to work in order to earn $518 she wants to use to buy a new phone.
Simply, substitute y = 518 in .
Divide both sides by 14
✅Thus, it will take Martina 37 hours to earn $518