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Vadim26 [7]
3 years ago
15

What is the value of x in the equation −6 + x = −1?

Mathematics
2 answers:
zhenek [66]3 years ago
8 0

Answer:

the answer is d 5

Step-by-step explanation:-6 +5= -1

Aleksandr-060686 [28]3 years ago
8 0

Answer:

d

Step-by-step explanation:

Given

- 6 + x = - 1 ( Isolate x by adding 6 to both sides )

x = - 1 + 6 = 5 ⇒ x = 5 → d

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Which statements about the system are true?
Kruka [31]

2 Answers:

  • B)  The lines are parallel
  • C)  The lines have the same slope.

Parallel lines always have equal slope, but different y intercepts.

==========================================================

Explanation:

Let's solve the second equation for y

3y - x = -7

3y = -7+x

3y = x-7

y = (x-7)/3

y = x/3 - 7/3

y = (1/3)x - 7/3

The equation is in y = mx+b form with m = 1/3 as the slope and b = -7/3 as the y intercept. We see that the first equation, where y was already isolated, also has a slope of m = 1/3. The two equations of this system have the same slope. Choice C is one of the answers.

However, they don't have the same y intercept. The first equation has y intercept b = -4, while the second has b = -7/3. This means that they do not represent the same line. They need to have identical slopes, and identical y intercepts (though the slope can be different from the y intercept of course) in order to have identical lines. So we can rule out choice D and E because of this.

Because the two equations have the same slope, but different y intercepts, this means the lines are parallel. Choice B is the other answer.

Parallel lines never touch or intersect, which in turn means there is no solution point. A solution point is where the lines cross. We can rule out choice A.

I recommend using your graphing calculator, Desmos, GeoGebra, or any graphing tool (on your computer or online) to graph each equation given. You should see two parallel lines forming. I used GeoGebra to make the graph shown below.

5 0
3 years ago
Elise and her dad are planning to attend the state fair. An adult ticket is $21.00. The price of an adult ticket is $10.00 more
belka [17]

Answer:

C)two thirds x + 10 = 21

Step-by-step explanation:

The equation for determining how much it would be paid for the student tickets is shown below:

Given that

The ticket of an adult is $21

Now let us assume the price of the student ticket be x

So two third would be 2 ÷ 3x

And for adult it would be

2 ÷ 3x + 10

Now the equation is

2 ÷ 3x + 10 = 21

So after solving this the option c is correct

And the rest of the options are wrong

6 0
3 years ago
Ok so if i want to build a city using 40 x 40 grid but i only wanna use 3/4 of the grid with titan fencing (300 dollars a square
astraxan [27]
160 plus 300 equal 460
5 0
3 years ago
Exponential form of 81/625
Vesnalui [34]

Step-by-step explanation:

Hey, there!!

you number is: 81/625

We know that,

81=9×9

and

625=25×25

and............................................................

9×9 means 9^2

and 25×25 means 25^2

so, the exponential form of the question is,

=\frac{ {9}^{2} }{ {25}^{2} }

{we simply find exponential form by finding their fraction}

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

4 0
3 years ago
One of the radioactive isotopes used in chemical and medical research is iodine-125, which has a half-life of 61 days. how long
Oksana_A [137]

Answer:122 days

Step-by-step explanation:

5 0
1 year ago
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