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3 years ago

What is the value of x in the equation 1 x – 8 = 4x + 12?

Mathematics

2 answers:

Cloud [144]3 years ago

5 0

Answer:

x = - $\frac{20}{3}$

Step-by-step explanation:

Given

x - 8 = 4x + 12 ( subtract 4x from both sides )

- 3x - 8 = 12 ( add 8 to both sides )

- 3x = 20 ( divide both sides by - 3 )

x = - $\frac{20}{3}$

Bess [88]3 years ago

3 0

Answer:

The value of x is -20/3.

Step-by-step explanation:

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4 * 5 = 20.

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3 years ago

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Select all the options that have the same value as 3 1/2 % of 20.

elena55 [62]

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3 years ago

Find the solution of the given initial value problem. ty' + 6y = t2 − t + 1, y(1) = 1 6 , t > 0

gtnhenbr [62]

Answer:

Step-by-step explanation:

Given is a differential equation as

$ty' + 6y = t^2 - t + 1, y(1) = 1 6 , t > 0$

Divide this by t to get in linear form

$y'+6y/t = t-1+1/t$

This is of the form

y' +p(t) y = Q(t)

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So solution would be

$yt = \int t^2-t+1 dt\\= t^3/3-t^2/2+t+C$

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4 0

3 years ago

Tarik rides a stationary bike and Janet rides her bike on a trail. Their data is shown

KiRa [710]

Answer:

Part a. The graph does not model a proportional relationship.

Part b. The values in table model a proportional relation.

3.5 minutes per mile.

Step-by-step explanation:

Part a.

The graph shown in the question representing Janet's data is not a straight line although it passes through the origin.

That is why the rate of change of distance with time is not constant.

Therefore, the graph does not model a proportional relationship.

Part b.

If we plot the data in the table using distance in miles along the y-axis and time in minutes along the x-axis, then we will get a straight line passing through the origin.

So, the values in the table model a proportional relation.

Now, Tarik's unit rate in minutes per miles will be $\frac{7-0}{2-0} =3.5$ minutes per mile. (Answer)

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3 years ago

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emmasim [6.3K]

So I use the formula hopefully these steps work

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2 years ago