5g + 3 = 2g + 9 Subtract 3 from both sides
5g = 2g + 6 Subtract 2g from both sides
3g = 6 Divide both sides by 3
g = 2
The two equations would be, respectively, y=12,000-400x and y=6000-300x
Set the two equal to one another and solve for x.
The answer is 60 hours
Answer:
Concept: Numerical Analysis
- So you have
- Cross multiply
- ad=cb
- da=cb
- ad=bc
- and etc
Answer:
B
Step-by-step explanation:
<span>Combine the logarithms first: log5(4x+3)-log5(x-1). Since it's subtract, divide the two.
log5((4x+3)/(x-1))=2
Make both sides the exponent of five. 5^log5 cancels out.
5^(log5(4x+3/x-1))=5^2
4x+3/x-1=25
Multiply both sides by (x-1) to get rid of it under 4x+3.
(x-1)4x+3/x-1=25(x-1)
4x+3=25x-25
Now subtract 4x from both sides AND add 25 to both sides. This way you'll have all the x's by itself.
28=21x
Divide both sides by 21.
28/21=x
x=1.33333333333...
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