Answer:
x = 4
Step-by-step explanation:
4(2x + 5) = 52 ( divide both sides by 4 )
2x + 5 = 13 ( subtract 5 from both sides )
2x = 8 ( divide both sides by 2 )
x = 4
Answer:
1500006875
Step-by-step explanation:
Multiply 2 numbers at a time
The equation y=x-2 do not represents the line that passes through the two point, since for example -4-2=-6, not 10. So (-4,10) is not on the line.
Let find the equation of the line:
First compute the slope using formula:
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So the equation is in the form:

For x=-4 we get the equation:

Solving the above equation for s we get:

The equation then is the following:
The correct answer then is equation 2 and equation 3.
F(x)=125-(125*0.2x)
to find the value of the phone after 3 years, you put x=3.
f(3)=125-(125*0.2(3))
f(3)=50
Is this correct? im not sure about the second ques