The last one because he has negative money so he has a liability to pay that money back
Answer: Rewrite equations:
3x=y;x−2y=10
Step: Solve3x=yfor y:
3x=y
3x+−y=y+−y(Add -y to both sides)
3x−y=0
3x−y+−3x=0+−3x(Add -3x to both sides)
−y=−3x
−y
−1
=
−3x
−1
(Divide both sides by -1)
y=3x
Step: Substitute3xforyinx−2y=10:
x−2y=10
x−23x=10
−5x=10(Simplify both sides of the equation)
−5x
−5
=
10
−5
(Divide both sides by -5)
x=−2
Step: Substitute−2forxiny=3x:
y=3x
y=(3)(−2)
y=−6(Simplify both sides of the equation)
Step-by-step explanation:
By constructing and solving the <em>profit</em> equation for the <em>cuckoo clock</em> sales, we conclude that the sales of 30 clock will make a profit of $ 4250
<h3>How to determine the monthly profit by the cuckoo clock sales</h3>
The profit (P) is the result of subtracting costs from sales (S). Cost (Cp) is the sum of rent (C) and <em>production</em> cost (C'). Now we proceed to create and solve the expression:
P = S - C - C'
P = 500 · x - 275 · x - 2500
P = 225 · x - 2500
P = 225 · 30 - 2500
P = 4250
By constructing and solving the <em>profit</em> equation for the <em>cuckoo clock</em> sales, we conclude that the sales of 30 clock will make a profit of $ 4250.
To learn more on profits: brainly.com/question/13716014
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Answer : johnathan and seth
Step-by-step explanation:
