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Tpy6a [65]
3 years ago
11

If x+y= = 12 and x = 2y, then x = O 2 06 08 10

Mathematics
2 answers:
kenny6666 [7]3 years ago
8 0

Answer:

2y + y = 12

3y = 12

y = 4

now , x = 2y

x = 2 ( 4 )

x = 8

hope that helps ✌

pickupchik [31]3 years ago
6 0

Answer:

February. we will be able the

Step-by-step explanation:future travel to the top, and then you are

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Convert 213base four to base5​
kakasveta [241]

Answer:

213 in base 4 = 124 in base 5

Step-by-step explanation:

First we convert base 4 to base 10

213 in base 4

2*42 + 1*41 + 3*40

32 + 4 + 3

39 in base 10

Now we convert base 10 to base 5

39/5  

7/5  r = 4

1 r = 2

124 in base 5

Hence 213 in base 4 = 124 in base 5

4 0
3 years ago
write the slope-intercept form for the equation of the line described through (4,-5) and parallel to y=--5/4x-4
Tems11 [23]

Answer:

y = -5x/4 + 0

Step-by-step explanation:

Find the slope

y = -5/4x - 4

Slope is the coefficient of x

Slope m = -5/4

Substitute m into point slope form equation

y - y1 = m(x - x1)

y - y1 = -5/4( x - x1)

Substitute the point into the equation

( 4 , -5)

x1 = 4

y1 = -5

y - y1 = -5/4( x - x1)

y - (-5) = -5/4( x - 4)

y + 5 = -5/4(x - 4)

Using a slope intercept form equation

y = mx + c

y - intercept point y

m - slope

x - intercept point x

c - intercept

open the bracket with -5/4

y + 5 = -5(x - 4)/4

y + 5 = (-5x + 20)/4

y = (-5x + 20)/4 - 5

LCM = 4

y =( -5x + 20 - 20)/4

y = ( -5x + 0)/4

Rearrange in

y = mx + c

y = -5x/ 4 + 0/4

y = -5x/4 + 0

The equation of the line is

y = -5x/4 + 0

3 0
3 years ago
Work out m and c for the line: y = 2 x + 5
azamat

Answer:

m=2

Step-by-step explanation:

7 0
1 year ago
Read 2 more answers
About how much would it cost to buy 4cd/mp3 players and 3 mp3 players
Mumz [18]
Average price of a CD/ mp3 player is : $ 150

Meanwhile , average price of an mp3 player is : $50

To buy 4 cd/mp3 player, we need $ 150 x 4 = $ 600
To but an mp3 player, we need $50 x 3      = $ 150 

The total is  $ 750

Hope this helps
5 0
3 years ago
What is the circumference
sleet_krkn [62]

Answer:  69.43 cm

Step-by-step explanation:

Given: Arc length (JK) = 40.5 cm

Central angle ∠ JLK = 210°

Arc length = \dfrac{x}{360}\times\text{Circumference}

\Rightarrow\ 40.5=\dfrac{210}{360}\times\text{Circumference}\\\\\Rightarrow \text{Circumference} =40.5\times\dfrac{360}{210}\\\\\approx69.43\ cm

Hence, Circumference = 69.43 cm

5 0
3 years ago
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