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frosja888 [35]
3 years ago
6

What is -(x + 4) - 3x = x in Distributive property?

Mathematics
1 answer:
andre [41]3 years ago
6 0

Answer:

x = -4/5

Step-by-step explanation:

Original equation: -(x+4)-3x=x

Remember distributive property allows us to get rid of the parenthesis by bringing a multiplication from outside to inside a parenthesis.

-(x+4) = -x-4

= -x-4-3x=x

Now we combine like terms in this case we have (-x) and (-3x)

= -4x-4=x

Subtract x from both sides

= -4x-4=x

  -x      -x

----------------

 -5x-4=0

Add 4 to both sides

-5x-4=0

    +4 +4

---------------

-5x=4

Our final step is to divide both sides by -5

-5x=4

----  ----

-5    -5

x = -4/5

Hope this helps!!!

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What is the measure of &lt;C?<br>​
zlopas [31]

Answer:

m∠C = 38°

Step-by-step explanation:

By the inscribed angle theorem,

"Intercepted arc measures the double of the measure of the inscribed angle"

m(arc AB) = 2[m(∠ACB)]

76° = 2[m(∠ACB)]

m(∠ACB) = 38°

Therefore, measure of angle ACB = 38°.

4 0
3 years ago
A digital camera memory card is 1/4 full. The card is 2/3 full when 375 more pictures have been taken.
marusya05 [52]
To get the answer first we have to find full numbers.
We can use proportion
2/3 ----------------------- 375
1 -------------------------- x
Crossmultiply now
2/3*x=375           /:2/3 
x=375: \frac{2}{3} 
x=375* \frac{3}{2}=562 - its the answer A)
Now we have to find how much were originally on the card.
To get the answer we can just multiply 562 times 1/4.
562*1/4=140 - its the asnwer B)
5 0
4 years ago
Read 2 more answers
Put the following numbers in ascending order<br> 12 g<br> 4600 kg<br> 2500 mg<br> 0.23 tonnes
Marina CMI [18]
Convert everything to kg first

12g = 0.012kg
2500mg = 0.0025kg
0.23 tonnes = 230kg

so
2500mg, 12g, 0.23 tonnes, 4600kg
8 0
4 years ago
If x =3+2 root 2 find x - 1/x​
AveGali [126]

Answer:

-2+2\sqrt{2}

Step-by-step explanation:

Since we have the value of x, 3+2\sqrt{2}, we can plug that value into the new equation.

We would recieve (3+2\sqrt{2}-1)/3+2\sqrt{2}

Which could simplify to -2+2\sqrt{2}

8 0
2 years ago
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Alex invests £3045 into an account that pays 2.25% compound interest per year.
Inessa [10]
<h2>○=> <u>Correct answer</u> :</h2>

Money in Alex's account after 16 years = \boxed{\bold{\color{plum}£4347.11}}

<h3>○=> <u>Steps to derive correct answer</u> :</h3>

Money invested by Alex = £3045

Percentage of compound interest per annum = 2.25%

We know that :

\tt \: \color{hotpink}A \color{plum} = P {(1 +  \frac{r}{n} )}^{nt}

In this case :

Principal = £3045

Rate = 2.25% = 0.0025

Number of times interest is compounded per year = 1

Time = 16 years

Which means :

Money Alex will have in the account after 16 years :

= \tt3045 ({1 + \frac{ 0.0025}{1} })^{16}

\color{plum}= \tt  £4347.11

Therefore, the money in Alex's account after 16 years = £4347.11

8 0
3 years ago
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