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3 years ago

8x + 5y = 22 -8x + y = 14

Mathematics

2 answers:

tatyana61 [14]3 years ago

5 0

Answer:

x = -1 and y = 6

Step-by-step explanation:

-8x + y = 14

y = 8x + 14

8x + 5y = 22

8x + 5 (8x + 14) = 22

8x + 40x +70 = 22

48x + 70 = 22

48x ÷ -48 = -48

x = -1

y = 8x + 14

y = 8 (-1) + 14

y = -8 + 14

y = 6

finlep [7]3 years ago

3 0

Answer:

Y = 6 X=-1

Step-by-step explanation:

Add the numbers 8x+-8x=0. 5y+y=6y. 22+14=36
So that means 6y=36. So Y would equal 6
Substitute the values it one of the original equations. 8x + 5(6) =22. 8x+30=22
Minus 22 from both sides.
That would give you 8x=-8
So x would equal - 1

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Step-by-step explanation:

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2 years ago

Which points are on the graph of g(x) = (1/5)^x

11111nata11111 [884]

Answer:

A) The point( -1 , 5) is satisfies the given graph $g(x) = (\frac{1}{5} )^{x}$

B) The point( 3 , 1/125) is satisfies the given graph $g(x) = (\frac{1}{5} )^{x}$

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given graph

y = $g(x) = (\frac{1}{5} )^{x}$

Put the point ( -1 , 5)

Put y =5 and x =-1

$5 = (\frac{1}{5} )^{-1} = 5$

The point( -1 , 5) is satisfies the given graph

ii)

Given graph

y = $g(x) = (\frac{1}{5} )^{x}$

$\frac{1}{125} = (\frac{1}{5} )^{3} = \frac{1}{125}$

The point( 3 , 1/125) is satisfies the given graph $g(x) = (\frac{1}{5} )^{x}$

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3 years ago

Which function is represented by the graph?

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Answer

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2 years ago

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Shkiper50 [21]

Answer:

(1,-1)

Step-by-step explanation:

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3 years ago

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Please help me with this

Gnoma [55]

Given:

The equation is:

$3^x\times 9=3^{2n-1}$

To find:

The value of n in terms of x.

Solution:

We have,

$3^x\times 9=3^{2n-1}$

It can be written as

$3^x\times 3^2=3^{2n-1}$

$3^{x+2}=3^{2n-1}$ $[\because a^ma^n=a^{m+n}]$

On comparing the exponents, we get

$x+2=2n-1$

Add 1 on both sides.

$x+2+1=2n-1+1$

$x+3=2n$

Divide both sides by 2.

$\dfrac{x+3}{2}=n$

Therefore, the value of n is terms of x is $n=\dfrac{x+3}{2}$ .

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3 years ago