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LUCKY_DIMON [66]
2 years ago
13

Find the value of x and y from ordered pair.(x+y,2x-y)=(13,2)​

Mathematics
2 answers:
Katarina [22]2 years ago
8 0

Answer:

x=5, y=8

Step-by-step explanation:

x+y=13

2x-y=2

add these two equations

3x=15

therefore x=5

apply this value in x+y=13

5+y=13

then y=13-5 = 8

shutvik [7]2 years ago
4 0

Answer:

x= 5 y=8

Step-by-step explanation:

x+ y=13( equation 1)

2x- y=2( equation 2)

From equation 1 we get:

x=13-y( equation 3)

Put equation 3 into equation 2:

2(13-y)- y=2

26-2y-y=2

26-3y=2

-3y=-24

y=8

Then from equation 3

x=5

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Help ! please :D<br> i only have about 15 min &gt;
guapka [62]

Answer:

  1. First option
  2. Third option
  3. Last option

I hope this helps!

6 0
3 years ago
A large purple bowl contains 5 blue marbles and 3 pink marbles. What is the probability a blue marble is drawn, replaced, and a
Blizzard [7]

Answer:

\frac{25}{64}

Step-by-step explanation:

Blue Marbles =5

Pink Marbles =3

Total =3+5=8

Probability of drawing two marbles with replacement

=P(First Blue Marble AND Second Blue Marble)

=P(First Blue Marble) X P(Second Blue Marble)

=\frac{5}{8}X \frac{5}{8}\\\\=\frac{25}{64}

3 0
2 years ago
Can somebody help me find the surface area of this
-Dominant- [34]

Answer:

G. 7600 cm^{2}

Step-by-step explanation:

Step 1: Deconstruct the shape

2 rectangles with dimension of 50 cm x 20 cm

2 rectangles with dimension of 40 cm x 20 cm

2 rectangles with dimension of 40 cm x 50 cm

Step 2: Find surface area of the shapes

2(50 x 20) = 2000 cm^{2}

2(40 x 20) = 1600 cm^{2}

2(40 x 50) = 4000 cm^{2}

Step 3: Add the surface areas together

2000 + 1600 + 4000 = 7600 cm^{2}

Therefore the surface area is 7600 cm^{2} and the answer is G.

4 0
3 years ago
The number of households without a computer at home in 2009 was closest to A)801000 B)1153000 C)1737000 D)3433000 E)4017000
bagirrra123 [75]

Answer:

B) 1153000

Step-by-step explanation:

Given

See attachment

Required

Number of households without computer in 2009

From the attachment, we have:

n=5170000 --- survey

p = 22.3\% --- proportion without computer

So, the actual number is:

Number = p * n

Number = 22.3\% * 5170000

Number = 1152910

Number \approx 1153000

<em>Hence: (B) is correct</em>

7 0
2 years ago
Simplify 9x + 4(x + 2) - 5:
vladimir1956 [14]
The answer is 68
Instructions: follow the bedmas rule of solving.
4 0
3 years ago
Read 2 more answers
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