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3 years ago

How do you factor 24a + 12b - 30?

Mathematics

2 answers:

makkiz [27]3 years ago

5 0

Answer:

6(4a+3b-5)

Step-by-step explanation:

They all share a common factor of 6 so we can factor out the six, 6(4a+3b-5)

pantera1 [17]3 years ago

5 0

Answer:

2a+b=5/2

Step-by-step explanation:

given the expression

24a + 12b - 30

Step one :

To solve this we need to look for a common factor

Here 6 is a common factor

So divide all through by 6

24a/6+12b/6-30/6

4a+2b-5

4a+2b=5

Step two :

We can still factor 2 out for the terms with variables

2(2a+b)=5

2a+b=5/2

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Answer:

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Sum of two number is 120. If the larger number is four times the smaller number, wbat are the two numbers

tankabanditka [31]

x+y=120_______1

x=4*y_________2

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3 years ago

Suppose I have a wooden cube, which I then split into eight equal pieces. If I give you two of those pieces, and then give you t

vampirchik [111]

Answer:

.625

Step-by-step explanation:

Since the amount of pieces are 8, and you gave 5 away, you have to divide 5 by 8. This gives you .625

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3 years ago

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The mass of the part of a metal rod that lies between its left end and a point x meters to the right is 3x^2 kg. Find the linear

Sav [38]

Answer:

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Step-by-step explanation:

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3 years ago

Using the quadratic formula to solve 4x2 – 3x + 9 = 2x + 1, what are the values of x?

yaroslaw [1]

Answer:

The value of x is:

$x=\dfrac{5\pm \sqrt{103}i}{8}$

Step-by-step explanation:

we have to use the quadratic formula to solve for x.

The equation is given as:

$4x^2-3x+9=2x+1$

which could also be written as:

$4x^2-3x+9-2x-1=0\\\\4x^2-3x-2x+9-1=0\\\\\\4x^2-5x+8=0$

The quadratic formula for the quadratic equation of the type:

$ax^2+bx+c=0$ is given as:

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here we have:

a=4, b=-5 and c=8.

Hence, by the quadratic formula we have:

$x=\dfrac{-(-5)\pm \sqrt{(-5)^2-4\times 8\times 4}}{2\times 4}\\\\x=\dfrac{5\pm \sqrt{25-128}}{8}\\\\\\x=\dfrac{5\pm \sqrt{103}i}{8}$

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3 years ago

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