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3 years ago

Determine if consistent or inconsistent and wether dependent or independent 3x - y=2 X+y=6

Mathematics

1 answer:

Marat540 [252]3 years ago

6 0

Answer:

x = 2, y = 4

Step-by-step explanation:

3x - y = 2

3(2) - (4) = 2

6 - 4 = 2

x + y = 6

(2) + (4) = 6

6 = 6

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Suppose Yakov is the only seller in the market for bottled water and Rajiv is the only seller

serious [3.7K]

Answer:

$\huge \underline \mathtt \colorbox{cyan}{didn't get 'chu}$

Step-by-step explanation:

Incomplete question

7 0

3 years ago

3¼÷2¼ how do I work this fraction?<br>

Sholpan [36]

Answer:

1 4/9 is the answer

Step-by-step explanation:

converting mixed numbers to fractions, our initial equation becomes,

13/4÷9/4

Applying the fractions formula for division,

=(13×4)/4*9

=52/36

Simplifying 52/36, the answer is

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4 0

3 years ago

Square root of the quantity x minus 2 end quantity plus 8 equals x

Butoxors [25]

ANSWER

x=11

EXPLANATION

We want to solve the equation:

$\sqrt{x - 2} + 8 = x$

Add -8 to both sides:

$\sqrt{x - 2} = x - 8$

Square both sides of the equation to get:

$(\sqrt{x - 2} )^{2} =( x - 8)^{2}$

$x - 2 = {x}^{2} - 16x + 64$

Rewrite in the form ax² +bx+c=0

${x}^{2} - 16x - x + 64 + 2 = 0$

${x}^{2} - 17x + 66 = 0$

Factor to get,

$(x - 11)(x - 6) = 0$

This implies that,

$x = 11 \: or \: x = 6$

Checking for extraneous solutions.

When x=6, the original equation becomes,

$\sqrt{6- 2} + 8 = 6$

$\sqrt{4 } + 8 = 6$

2+8= 6 is not true.

x=6 is an extraneous solution.

When x=11, the original equation becomes,

$\sqrt{11- 2} + 8 = 11$

$\sqrt{9} + 8 = 11$

$3 + 8 = 11$

This is true, hence x=11 is the only solution.

5 0

3 years ago

Ms. Grant’s car gets between 20 and 22 miles per gallon, inclusive. The gasoline she uses costs between $4.20 and $4.50 per gall

maria [59]

Answer:

You need to be more clearer with the money amount not like 4.20 - 4.50

Step-by-step explanation:

7 0

3 years ago

What is 50% of 20% = ?

algol [13]

10% because .5x.2=.1

4 0

4 years ago

Read 2 more answers