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zloy xaker [14]
3 years ago
8

You buy painting supplies for $12, and you charge $3 per person to paint faces. How many faces will you need to paint to earn $1

5 in profit?

Mathematics
2 answers:
aksik [14]3 years ago
5 0
You will need to paint 9 faces in order to earn $15. I solved this problem by setting up an equation using the given information. The equation is 15=3x - 12. 15 is the goal amount of profits. 3x represents $3 per person/face charge. I subtracted $12 from that because it is the money used to buy paint supplies. After that, i solved for x. The answer is 9 faces. Hope this helped you! I included a picture of my work :))

Marianna [84]3 years ago
4 0
You will need to paint 9 faces to earn $15 in profit


good luck
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A point on the graph would be:

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Substitute \mathbf{(x,y) = (28,0)} in \mathbf{y = a(x - 14)^2 + 20}

\mathbf{0 = a(28 - 14)^2 + 20}

\mathbf{0 = a(14)^2 + 20}

Collect like terms

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Substitute \mathbf{a =- \frac{5}{49}} in \mathbf{y = a(x - 14)^2 + 20}

\mathbf{y = -\frac{5}{49}(x - 14)^2 + 20}

Hence, the equation of the parabola  that describes the path of her jump is \mathbf{y = -\frac{5}{49}(x - 14)^2 + 20}

See attachment for the graph

Read more about equations of parabola at:

brainly.com/question/4074088

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