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horsena [70]
3 years ago
11

How do you solve multi step equations (ik how to do) but with the variables and doing distributive property? I know to start you

distribute parenthesis but after that I kinda get lost. Explain it by using an example equation and go deep into explanation and you will totally get brainiest!!
Mathematics
1 answer:
erik [133]3 years ago
6 0

Answer:

Let's say we have this equation, for example⤵⤵⤵:

12 - 6(x + 10) = 60

You obviously know that first you must distribute -6 amongst everything inside the parenthesis, and that will give you -6x - 60. Then you'd rewrite the equation with this in mind, to get

12 - 6x - 60 = 60

Next, you need to combine the like terms, in this case 12 and -60, to get -48. Now you have

-6x - 48 = 60

Afterwards, you'd do the opposite of -48 and add it on both sides of the equal sign. Now you'll have -6x = 108

Finally, you'd divide -6 on both sides, in order to get x by itself, to get x = -18

Hopefully, this example/explanation helps you understand the concept better :)

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What is the rate of change for 1
Alla [95]

Answer:

Option D, 24

Step-by-step explanation:

<u>Step 1:  Determine the rate of change or slope</u>

m = \frac{y_2-y_1}{x_2-x_1}

m=\frac{32-8}{2-1}

m=\frac{24}{1}

m=24

Answer:  Option D, 24

5 0
2 years ago
BC = 6, EF = 12 Based on the given information, choose the similarity statement that you would use to say ABC~DEF. If you could
vovangra [49]

Answer:

The answer is "NOT"

Step-by-step explanation:

  • To demonstrate a similar statement we want to have yet another side or some other angle, however, the third section is not proportional.  
  • Its sides were equivalent in proportions (yeah sure they are) + corner by the by is not given.
  • There is no triangle angle provided so, that we can not enforce the SAS argument.  
  • It is not evidence of similarity between ABC ≈DEF.
6 0
3 years ago
Tera buys 10 pencils for $1.99.<br> About how much $ does each pencil<br> cost?
True [87]

Answer:

19 cents or 0.199

Step-by-step explanation:

Hope it helped!

8 0
2 years ago
Read 2 more answers
An icicle with a diameter of 15.5 centimeters at the top, tapers down in the shape of a cone with a length of
Helga [31]

Answer:

Step-by-step explanation:

Note: I will leave the answers as fraction and in terms of pi unless the question states rounding conditions to ensure maximum precision.

From the question, we can tell it is a inversed-cone (upside down)

Volume of Cone = \pi r^{2} \frac{h}{3}

a) Given Diameter , d = 15.5cm and Length , h = 350cm,

we first find the radius.

r = \frac{d}{2} \\=\frac{15.5}{2} \\=7.75cm

We will now find the volume of the cone.

Volume of cone  \pi (7.75)^{2} \frac{350}{3} \\= \frac{168175\pi }{24}

We know the density of ice is 0.93 grams per 1cm^{3}

1cm^{3} =0.93g\\\frac{168175\pi }{24}  cm^{3} =0.93(\frac{168175\pi }{24} )\\= 20473 g(Nearest Gram)

b) After 1 hour, we know that the new radius = 7.75cm - 0.35cm = 7.4cm

and the new length, h = 350cm - 15cm = 335cm

Now we will find the volume of this newly-shaped cone.

Volume of cone = \pi (7.4)^{2} \frac{335}{3} \\= \frac{91723\pi }{15} cm^{3}

Volume of cone being melted = New Volume - Original volume

= \frac{168175\pi }{24} -\frac{91723\pi }{15} \\= \frac{35697\pi }{40} cm^{3}

c) Lets take the bucket as a round cylinder.

Given radius of bucket, r = 12.5cm (Half of Diameter) and h , height = 30cm.

Volume of cylinder = \pi r^{2} h\\=\pi (12.5)^{2} (30)\\=\frac{9375\pi }{2} cm^{3}

To overflow the bucket, the volume of ice melted must be more than the bucket volume.

Volume of ice melted after 5 hours = 5(\frac{35697\pi }{40} )\\=\frac{35697\pi }{8} cm^{3}

See, from here of course you are unable to tell whether the bucket will overflow as all are in fractions, but fret not, we can just find the difference.

Volume of bucket - Volume of ice melted after 5 hours

= \frac{9375\pi }{2} -\frac{35697\pi }{8 } \\=\frac{1803\pi }{8}cm^{3}

from we can see the bucket can still hold more melted ice even after 5 hours therefore it will not overflow.

4 0
2 years ago
Please help i will give brainliest!!
Romashka-Z-Leto [24]
5.78x10^7
If you need an explanation on how then let me know :)
4 0
3 years ago
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