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astraxan [27]
3 years ago
14

If x/2 + 3y=6, then solve for x in terms of y and y in terms of x

Mathematics
1 answer:
Elden [556K]3 years ago
5 0
X/2 +3y = 6 . . . . . . . . starting point
x/2 = 6 -3y . . . . . . . . subtract terms that don't have x
x = 2(6 -3y) . . . . . . . . multiply by the inverse of the x-coefficient
x = 12 -6y . . . . . . . . . expand if you like

3y = 6 -x/2 . . . . . . . . subtract terms that don't have y
y = (6 -x/2)/3 . . . . . . . multiply by the inverse of the y-coefficient
y = 2 -x/6 . . . . . . . . . expand if you like
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What is the answer to x+4=6
sattari [20]

Answer:

x=2

Step-by-step explanation:

When solving an algebraic equation, you have to get x alone

you do this by doing the inverse of whatever is efecting x

in this case it is x+4 so you subtract 4 from x+4

x+4-4=x

but when doing something like this, you have to do the same thing to both sides

x+4<em><u>-4</u></em>=6<u><em>-4</em></u>

x=2

please mark me brainliest!

4 0
3 years ago
Which of the following numbers is irrational?
baherus [9]
An irrational number is one that can’t be expressed as a simple fraction.

For instance, the first few digits of the square root of two is written as 1.414213562373095... The digits keep going and cannot be expressed as a fraction. But think of 0.33333... That can easily be written as one-third. The distinguishing feature is that there’s no pattern in the digits for the square root of two.

The first two options are integer fractions. We rule those out immediately. The square root of four is tempting, but realize that it is just equal to two. We come to π (pi).

Arguably the most famous irrational number is π, which starts off as 3.14159265358979... Here, there is again no pattern and the digits extend forever. This meets our definition of our irrational.
8 0
3 years ago
Read 2 more answers
Divide. Round your answer to the nearest whole number.<br><br><br> 2,592.1856 divided by .108=?
Ierofanga [76]

Answer:

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Step-by-step explanation:

2,592.1856 divided by 0.108

= 24001.7185185

= 24002 (rounded to the nearest whole number)

Hope this helped!

3 0
2 years ago
A rectangle has a width of 5 yd and a length of 9 yd.
Yuri [45]

Answer:

Option The area is increased by a factor of 16

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its areas is equal to scale factor squared

Let

z-----> the scale factor

x------> the area of the dilated rectangle

y------> the area of the original rectangle

z^{2}=\frac{x}{y}

we have

z=4 ------> is an enlargement

so

substitute

4^{2}=\frac{x}{y}

16=\frac{x}{y}

x=16y

therefore

The area is increased by a factor of 16


8 0
3 years ago
Read 2 more answers
a 120 watt light bulb uses about 0.1 kilowatt of electricity per hour. if electricity costs 0.20 per kilowatt hour, how much doe
Allushta [10]
A 120 watt light-bulb is a 0.120 kilowatt light bulb.

In one hour, it uses 0.120 kilowatt-hour of energy.

If electrical energy costs $0.20 per kilowatt hour, then that light bulb costs

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                            (0.120 x $0.20 / hour)  =  

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5 0
3 years ago
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