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4 years ago

X+2/3=9/10 what does x equal

Mathematics

1 answer:

PtichkaEL [24]4 years ago

7 0

Answer:

x = 7/30

Step-by-step explanation:

Identify the LCD; it is 30. 30 is the smallest number divisible by both 3 and 10.

Then we have:

(30/30)x + 20/30 = 27/30.

Clearing out the fractions, we get:

30x + 20 = 27, or 30x = 7

Dividing both sides of this result by 30 yields x = 7/30.

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3 years ago

What value of x is in the solution set of 2(3x - 1) 24 - 6?

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3 years ago

Determine what value(s) for the variable would make each algebraic equation a true number sentence. 6p=3p+2p+p6p=3p+2p+p

mixer [17]

We are given equation 6p=3p+2p+p.

Let us simplify right side of the eqaution by combing all like terms.

We have 3p+2p+p on rigth side.

We don't have any number in front of left term p.

p could be written as 1p.

So, 3p+2p+p could be written as 3p+2p+1p.

Now, we can add like terms

On adding 3p+2p+1p, we get 6p.

Substituting this value in original equation, we get

6p=6p.

We got both sides same.

When we get same terms on both sides of an equation, the equation would have solution as " All real numbers".

Because we can take any value for unknown variable p.

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4 0

3 years ago

Solve for x, y, and z

zloy xaker [14]

Answer:

The solution is x=1,y=2,z=3

Step-by-step explanation:

The given system of equations is ;\

2x−3y+4z=8...(1)

3x+4y−5z=−4...(2)

4x−5y+6z=12...(3)

Make x the subject in equation (1)

$x=\frac{8+3y-4z}{2}...(4)$

Put equation (4) into equation (2) and (3)

$3(\frac{8+3y-4z}{2})+4y-5z=-4$

Multiply through by;

$3(8+3y-4z)+8y-10z=-8$

Expand;

$24+9y-12z+8y-10z=-8$

Simplify;

$17y-22z=-32...(5)$

Equation (4) in (3)

$4(\frac{8+3y-4z}{2})-5y+6z=12$

$2(8+3y-4z)-5y+6z=12$

$16+6y-8z-5y+6z=12$

$y-2z=-4$

$y=2z-4...(6)$

Put equation (6) into equation (5)

$17(2z-4)-22z=-32$

$34z-68-22z=-32$

$34z-22z=-32+68$

$12z=36$

z=3

Put z=3 into equation (6)

y=2(3)-4=2

Put y=2 and z=3 into equation 4

$x=\frac{8+3(2)-4(3)}{2}=1$

The solution is x=1,y=2,z=3

3 0

3 years ago

HELP ME PLEASE!!! HURRY

Stolb23 [73]

Answer:

Option c

Step-by-step explanation:

The answer is 8 pi r

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3 years ago

Read 2 more answers