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3 years ago

What is the value of x?

Mathematics

1 answer:

Andreas93 [3]3 years ago

8 0

Answer:

x=1

Step-by-step explanation:

13x + 7 = 33x - 13

20x = 20

x = 1

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1 4th plus 5 8th equals

Finger [1]

These two have different denominators, so you find the least common multiple. This problem goes to be 2/8+5/8, which equals 7/8。

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3 years ago

1/2(8a+200b)<br><br> Is the answer 4a+100b?

kaheart [24]

Answer:

you are correct it is, 4a+100b

Step-by-step explanation:

4 0

2 years ago

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XLCDLXVI in actual numbers

tatuchka [14]

Your answer will be 406 hope this helps

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4 years ago

PLSSSSSS HELP <br> BRAINLIST

Helga [31]

Answer:

The step 4 is not what he should have done. But the wrong is step 5, because if he added -2x both sides, it would give the following equation:

$x-12=-4x+6$

and not $x-12=6$

Note that in step 4 he should have added 2x and not -2x to both sides, but we still have the equality. The problem is that step 5 is totally wrong.

I don't know what answer is expected to this question, but I would mark step 5, because this is mathematically wrong.

Solving the equation

$3(x-4)=-4-2(x-5)$

Using distribution

$3x-12=-4-2x+10\\3x-12=-2+6$

Add $2x$ both sides

$3x-12+2x=-2x+6+2x$

$5x-12=6$

Add 12 both sides

$5x-12+12=6+12\\5x=18$

Divide both sides by 5

$x=\frac{18}{5}$

4 0

3 years ago

Help The area of a square

DIA [1.3K]

Answer:

$2551\dfrac{1}{2}$

Step-by-step explanation:

$\bf l = 20\dfrac{\sf 1}{4} \ in = \dfrac{81}{4} \ in$

$\bf w = 10\dfrac{1}{2} = \dfrac{21}{2} \ in\\\\\\h = 12 \ in$

Volume of rectangular prism = l*w*h

$= \dfrac{81}{4}*\dfrac{21}{2}*12\\\\\\= 81 *\dfrac{21}{2}*3\\\\\\= \dfrac{5103}{2}\\\\\\= 2551 \dfrac{1}{2} \ cubic \ inches$

3 0

2 years ago

Read 2 more answers