All categories

3 years ago

Can someone help please 3x-y=13 A. (6,5) B.(3,-4) C. (6,5) and (3,-4) D. neither

Mathematics

2 answers:

Katen [24]3 years ago

8 0

Answer: c

Step-by-step explanation:

lol

gavmur [86]3 years ago

6 0

Answer:

C. (6, 5) and (3, -4)

Step-by-step explanation:

Given the equation 3x - y = 13, we need to figure out which points satisfy it. In order for an ordered pair to satisfy an equation, when we plug the x-coordinate in for x and the y-coordinate in for y, the equation should hold true.

Let's try with (6, 5):

3x - y = 13

3 * 6 - 5 =? 13

18 - 5 =? 13

13 = 13

Since this is true, we know that (6, 5) is indeed a solution.

Now let's try with (3, -4):

3x - y = 13

3 * (3) - (-4) =? 13

9 + 4 =?13

13 = 13

Again, since this is true, then (3, -4) must be a solution.

Thus, the answer is C.

<em>~ an aesthetics lover</em>

You might be interested in

The Taylors plan to expand their

podryga [215]

Answer:

$A_{2} = 720\ ft^{2}$

Step-by-step explanation:

Let w and l be the width and length of the garage.

Let $A_{1}$ and $A_{2}$ be the area of garage at present and new garage.

Given:

The area of the garage at present

$A_{1}=80\ ft^{2}$

And he planed to tripling the dimensions of the garage.

We need to find the area of the new garage.

Solution:

We know the area of the rectangular garage.

$Area=width\times lendth$

$A_{1}=w\times l$

$w\times l=80$ ---------------(1)

The dimension of the new garage is triple, so the area of the new garage is.

$A_{2} = (3\times width)\times (3\times length)$

$A_{2} = (3\times w)\times (3\times l)$

$A_{2} = 9\times (w\times l)$

Substitute $w\times l=80$ from equation 1.

$A_{2} = 9\times (80)$

$A_{2} = 720\ ft^{2}$

Therefore, the area of the new garage $A_{2} = 720\ ft^{2}$

4 0

4 years ago

The distance of planet mercury from the sun is approximately 5.8* 10^7 ,kilometers and the distance of earth from the sun is 1.5

valentinak56 [21]

The earth is approximately 9.2*10^7 farther than mercury

5 0

3 years ago

Find the missing fraction _+1/16=3/2

Ganezh [65]

Answer:

23/16

Just set the missing fraction has X, and multiply the numerator and denominator of 3/2 by 8 so that it equals 24/16. This way you can isolate X and get x=23/16. It can't be simplified further, so that should be your final answer.

6 0

3 years ago

4x2 - 5 + x + 5x2 + 3x - 9

Mnenie [13.5K]

Answer:

9x2+4x−14

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A rectangular garden is 6 feet by 4 feet. There is a sidewalk of uniform width around the garden. The area of the sidewalk and t

alexgriva [62]

Let x be the width of the sidewalk and the area becomes:

A=LW and L=6+2x and W=4+2x now we have

A=(6+2x)(4+2x) and we are told that A=48ft^2

48=24+20x+4x^2

4x^2+20x-24=0

4(x^2+5x-6)=0

x^2+5x-6=0

x^2-x+6x-6=0

x(x-1)+6(x-1)=0

(x+6)(x-1)=0

So x=-6, 1, however since x is a measurement it must be positive thus

x=width=1 ft is the only possible solution.

8 0

3 years ago

Read 2 more answers