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vazorg [7]
3 years ago
14

5x-(x+3)=1/3 (9x+18)-5 Please show me step by step

Mathematics
1 answer:
zzz [600]3 years ago
3 0

Step-by-step explanation:

5x-(x+3)=1/3(9x+18)-5

5x-x+3=3x+6-5

1/3 multiplied by 9/1 is three because if you take away the ones and put your problem like this: 9/3, you'll get 3.

1/3 multiplied by 18/1 is six because if you take away the ones and switch to division, it'll look like this: 18/3. 18/3 is 6.

5x-1x+3=3x+6-5

If a variable is alone, you should - in this case - put a one before it, but if the variable is alone you should know that it's automatically a one.

4x+3=3x-1

6-5=1 Simple math problem, probably self explanatory

4x+3=3x-1

Subtract 3x from 4x and you'll get 1x because 4-3 is 1.

1x+3=-1

Then you add 3 to -1 which is 2.

The answer is 1x=2

Or you could've done:

4x+3=3x-1

-4x    -4x

    3=-1x-1

 +-1    +-1

2=1x

It's the same answer, but all I did was subtract the 4x from the 4x and 3x.

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The cone and cylinder below have equal surface area
marissa [1.9K]

Answer:

Option B, False

Step-by-step explanation:

<u>Step 1:  Get the surface area formulas for both shapes</u>

Surface Area Formula for Cone:  A = \pi * r(r + \sqrt{h^{2} + r^{2}})

Surface Area Formula for Cylinder:  A = 2\pi rh+2\pi r^{2}

<u>Step 2:  Plug in the values and solve</u>

Cone:  A = \pi * r(r + \sqrt{(3r)^{2} + r^{2}})

Cone:  A = \pi r^{2} + \pi \sqrt{10}r^{2}

Cylinder:  A = 2\pi r*r+2\pi r^{2}

Cylinder:  A=4 \pi r^{2}

<u>Step 3:  Compare</u>

<u />\pi r^{2} + \pi \sqrt{10}r^{2}\neq 4 \pi r^{2}

They are not equal, therefore the answer is False.

Answer:  Option B, False

6 0
2 years ago
What is the perimeter?
maria [59]

Answer:

14

Step-by-step explanation:

because the side length are 5 and 5 and 4 which is 14.

plz mark the brainliest

6 0
2 years ago
Kim purchased a $65.00 dress for 20% off. How much did she save?
Ainat [17]
The best thing to do here is to find ten percent, and then double it.
To do this, you divide the number you have by 10.
65.00/10= 6.50
Therefore, you've now got to multiply this by 2.
6.5*2= 13
Therefore, Kim saved $13 on the price of the dress.
Hope this helps :) 
6 0
3 years ago
Find the greatest common factor: 24y^8 + 6y^6
Marrrta [24]

Find the Greatest Common Factor (GCF)

<u>GCF = 6y^6</u>

Factor out the GCF. (Write the GCF first. Then, in parenthesis divide each term by the GCF.)

6y^6(24y^8/6y^6 + 6y^6/6y^6)

Simplify each term in parenthesis

<u>6y^6(4y^2 + 1)</u>

7 0
3 years ago
Witch of the following is a true statement about a circle inscribed in a regular polygon
ss7ja [257]
The area of the circle is equal to the area of the polygon
4 0
3 years ago
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