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sergejj [24]
2 years ago
8

X+2y=82x-y=1mathe question​

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
4 0

Answer:

x = 2 and y = 3

Step-by-step explanation:

We have

x+2y = 8 -----equation (i)

2x-y = 1 -----equation (ii)

Now,

x+2y = 8

or, x = 8-2y ------equation (iii)

Again,

2x-y = 1

or, 2x = 1+y

or, 2x-1 = y

Putting the value of 'x' from equation (iii)

or, 2(8-2y)-1 = y

or, 16-4y-1 = y

or, 16-1 = y+4y

or, 15 = 5y

or, y = 15/5

or, y = 3

Putting the value of 'y' in equation (iii)

x = 8-2y

or, x = 8-(2×3)

or, x = 8-6

or, x = 2

Therefore, x = 2 and y = 3.

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Find the perimeter of the figure
sergiy2304 [10]

Answer:

142

Step-by-step explanation:

Ok explanation

we know the sides 9, 11, 38, and 13.

there are 2 missing sides we need to find

so the first one whic is the longer one is we know that the 38 is already 1 part of it but not the whole thing. We know the 9 is part of the 38 since it connects. So that gives us that side of 47.

Now for the shrter side, we know 1 part of it is 13 And the other part is 11. So we Add them up and get 24

Now the sides are 9, 11, 38, 13, 47, and 24

We add them up and get 142

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3 years ago
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Nutka1998 [239]

The percent of the increase is

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N is the new value

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The selling price of the cooler is $40.76, then

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We will substitute them in the rule above to find I

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6 0
1 year ago
Solve the inequality 8x-2>6
Leokris [45]

Answer:

x > 1

Step-by-step explanation:

Given

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x > 1

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1 is irr 2 is rat 3 rat 4 rat 5 irr and 6 is irr
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Is he square root of -144 rational or irrational?
gladu [14]

Answer:

Step-by-step explanation:

Neither.

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