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3 years ago

15

John's monthly cell phone bill can be described by the linear function C(t) =0.10t+39.99, where C(t) represents the cell phone b

ill and t represents each text message sent and received
What would the slope represent?

1 answer:

UkoKoshka [18]3 years ago

5 0

Answer:

cost of bills

Step-by-step explanation:

since it is a linear graph

if you take the form of y=mx+c

m= ∆y/∆x

which is cost of bills

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Or which equation would x = 4 be a solution?

ElenaW [278]

$2x+7=22\ \ \ \ |-7\\2x=15\ \ \ \ \ |:2\\x=7.4\neq4\\----------------------\\6x\div8=3\ \ \ \ |\cdot8\\6x=24\ \ \ \ |:6\\x=4\\-------------------\\8-3x=20\ \ \ \ |-8\\-3x=12\ \ \ \ |:(-3)\\x=-4\neq4\\---------------------\\2x+8=4\ \ \ \ \ |-8\\2x=-4\ \ \ \ \ |:2\\x=-2\neq4\\\\Answer:\ 6x\div8=3$

Other method.

Enter the value of x for each equation and check the equality of the pages of the equation

$2x+7=22\\L=2(4)+7=8+7=15;\qquad R=22\qquad L\neq R\\\\6x\div8=3\\L=6(4)\div8=24\div8=3;\qquad R=3;\qquad L=R\\\\8-3x=20\\L=8-3(4)=8-12=-4;\qquad R=20;\qquad L\neq R\\\\2x+8=4\\L=2(4)+8=8+8=16;\qquad R=4;\qquad L\neq R$

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3 years ago

Write an equation of the line that passes through the given point and is (a) parallel and (b) perpendicular to the given line.

Levart [38]

The rule of the equation of the line is y=mx+b but since we don't have a B so it will be y=mx so in order to solve it you need to exchange the ordered pairs
X=4, y=3
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m=4 over 3 (4/3)

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4 years ago

Jason purchased a machine for his factory. The value of the machine was $21,500 in 2010. In 2011, the value of the machine was $

Nana76 [90]

I think it would be D. A decreasing exponential function.

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3 years ago

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shtirl [24]

Answer:she has $60.25 left...I think

Step-by-step explanation:

8 .50 + 3.25= 11.75

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3 years ago