andr8aa
20.05.2020 •
Mathematics
Solve by substitution the following problem please y=10.20x+2500
With steps!
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Solved
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Ответ:
x=0.098039y−245.098039
Step-by-step explanation:
Let's solve for x.
y=10.2x+2500
Step 1: Flip the equation.
10.2x+2500=y
Step 2: Add -2500 to both sides.
10.2x+2500+−2500=y+−2500
10.2x=y−2500
Step 3: Divide both sides by 10.2.
10.2x
10.2
=
y−2500
10.2
x=0.098039y−245.098039
Ответ:
Step-by-step explanation:
The cost of computer = $ 800
It losed 1/4th of value every year.
The value of computer after 0 years = cost of computer = $ 800
The value after 1 year = 800 - (
) = $600
The value after 2 years = 600 - (
) = $450
The value after 3 years = 450 - (
) = $337.5
The value after n years = computer cost at (n-1) year -