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3 years ago

Does anyone wanna be my friend? i need people to talk to while being quarantined ;/

Mathematics

2 answers:

GarryVolchara [31]3 years ago

7 0

Answer: yes uwu

Step-by-step explanation:

Because yes owo

Also my insta is tsuyu._.teh._.frog

iren2701 [21]3 years ago

3 0

Answer:

ssssaaaaaammmmmeeeee

Step-by-step explanation:

me too everyone is bored INCLUDING MEEEEEEEEEEEE ugh

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Which ordered pair is a solution to the system of linear equations 1/2x-3/4y=11/60 and 2/5x+1/6y=3/10

natka813 [3]

ANSWER

$( \frac{2}{3} , \frac{1}{5} )$

EXPLANATION

The first equation is

$\frac{1}{2} x - \frac{3}{4} y = \frac{11}{60} ...(1)$

The second equation is

$\frac{2}{5} x + \frac{1}{6} y = \frac{3}{10} ...(2)$

We want to eliminate y, so we multiply the first equation by

$\frac{4}{5}$

$\frac{4}{5} \times \frac{1}{2} x - \frac{4}{5} \times \frac{3}{4} y = \frac{11}{60} \times \frac{4}{5}$

$\frac{2}{5} x - \frac{3}{5} y = \frac{11}{75} ...(3)$

We now subtract equation (3) from (2)

$(\frac{2}{3} x - \frac{2}{3} x )+ ( \frac{1}{6} y - - \frac{3}{5}y ) =( \frac{3}{10} - \frac{11}{75} )$

$\frac{1}{6} y + \frac{3}{5}y =\frac{3}{10} - \frac{11}{75}$

$\frac{23}{30}y = \frac{23}{150}$

Multiply both sides by

$\frac{30}{23}$

$\implies \: \frac{30}{23} \times \frac{23}{30}y= \frac{23}{150} \times \frac{30}{23}$

$\implies \: y = \frac{1}{5}$

Substitute into the first equation to solve for x .

$\frac{1}{2} x - \frac{3}{4} \times \frac{1}{5} = \frac{11}{60}$

Multiply to obtain

$\frac{1}{2} x - \frac{3}{20} = \frac{11}{60}$

$\frac{1}{2} x = \frac{11}{60} + \frac{3}{20}$

$\frac{1}{2} x = \frac{1}{3}$

Multiply both sides by 2.

$2 \times \frac{1}{2} x =2 \times \frac{1}{3}$

$x = \frac{2}{3}$

The solution is

$( \frac{2}{3} , \frac{1}{5} )$

5 0

3 years ago

Read 2 more answers

WILL MARK BRAINLIEST!!!!!

andreev551 [17]

Answer: 3rd option (-2, -3)

4 0

3 years ago

Pls help I’m begging

stich3 [128]

Answer:

3:1 and 15:5

Step-by-step explanation:

Not too sure

5 0

3 years ago

One line segment is 12 less than twice the length of another line segment. The sum of their lengths are 69 cm. How long are the

Kruka [31]

Step-by-step explanation:

Let us consider the length of a line segment to be 'x'

Let the other line segment be 'y'

One line segment is 12 less than twice the length of other segment.

X = 2y - 12

The sum of both the lengths = 69cm

X + Y = 69

X = 69 - Y

Substitute the X value in the first equation

X = 2y - 12

69 - Y = 2Y - 12

- Y - 2Y = -12 -69

- 3Y = - 81

3Y = 81

Y = 81/3

Y = 27 CM

Length of One of the line segment is 27cm

The length of the other line segment 'x'

X= 2y - 12

X = 2(27) - 12

X = 54 - 12

X = 42cm

The length of the line segments are 42cm and 27cm.

6 0

3 years ago

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Rebecca downloaded four times as many songs as Nigel. If X represents the number of songs downloaded by Nigel, write an expressi

Zanzabum

Answer:

X = the number of songs downloaded by Nigel

Y = the number of songs downloaded by Rebecca

Rebecca downloaded four times as many songs as Nigel.

Y = 4X

3 0

3 years ago

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