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Ray Of Light [21]
3 years ago
14

What is the value of x in the equation 3x-1/9y=18 when y= 27

Mathematics
2 answers:
makkiz [27]3 years ago
6 0

Answer:

x=7

Step-by-step explanation:

3x-1/9(27)=18\\3x-3=18\\3x=18+3\\3x=21\\3x/3=21/3\\x=7

Nutka1998 [239]3 years ago
5 0

Answer:

x =7

Step-by-step explanation:

3x-1/9y=18

Add 1/9 y to each side

3x-1/9y + 1/9 y=18+ 1/9 y

3x = 18 + 1/9 y

Divide by 3

3x/3 = 18/3 + 1/9y *1/3

x = 6 + 1/27 y

Let y = 27

x= 6+ 1/27 * 27

x = 6+1

x = 7

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I am a student in need pls help me
solmaris [256]

Answer:

2*400= 2*400*1

2*400

800

or

2 x 400 = 2 x 100 x 4

100 x 4

= 400

<u>I hope this helps:</u>

Sorry if it didn't :(

7 0
3 years ago
Read 2 more answers
What is the midpoint of (-23,-14) and (-18,2)
zloy xaker [14]

Given two coordinates point 1 as (-23,-14) and point 2 as(-18,2).

To find the midpoint we would use the formula below;

\text{midpoint(x,y)}=(\frac{x_1+x_2_{}_{}}{2},\frac{y_1+y_2}{2})

Where x1=-23, x2=-18, y1=-14, y2=2

We would substitute the values into the midpoint formula.

\begin{gathered} \text{midpoint =(}\frac{-23-18}{2},\frac{-14+2}{2}) \\ =(-\frac{41}{2},-6) \end{gathered}

Therefore, the answer is

\text{midpoint}=(-\frac{41}{2},-6)

7 0
1 year ago
The proper scientific notation for 676,000,000,000 is?
tia_tia [17]
6.76 x 10^11
this is because when you are placing something in a scientific notation you basically move the decimal place behind the last hole number in this case 6. and count the remaining  numbers behind the decimal such as .76,000,000,000 which there 11 counting 76 with the zeros. then you place the number of places behind the decimal as an exponent of 11 and keep all real numbers besides 0 as your other half
7 0
3 years ago
Emily decided to take up Weightlifting she thought it would be
melisa1 [442]

Answer:

Common Ratio = 2

Step-by-step explanation:

Emily started with 12 lb at start.

She will double each day

So,

2nd day she will take up weight = 12 * 2 = 24

3rd day she will take up weight = 24 * 2 = 48

and so on

This is a geometric sequence, which is a sequence where each term is found by multiplying the previous term by a constant which is known as the common ratio.

Here, we are multiplying by "2" to get the next term, so we an say the common ratio is "2".

<u>Answer: Common Ratio = 2</u>

8 0
3 years ago
What is the horonzontial distance between the two points(3,4) and (8,4)
alina1380 [7]

Answer:

Distance  =  5.099

Step-by-step explanation:

8 0
3 years ago
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