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aalyn [17]
3 years ago
7

What is x? 3-2x=21 Show the steps?

Mathematics
1 answer:
JulsSmile [24]3 years ago
3 0

Answer:

x = -9

Step-by-step explanation:

3-2x=21

-3       -3

-2x=18

/-2   /-2

x=-9

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Distance between (-6, -2) and (0,-1)
s344n2d4d5 [400]

Hey there! I'm happy to help!

To find the distance between two points, you square the difference of the x-values and square the difference of the y-values, add them, and then you square root it!

First, we'll add our two x-values.

-6-0= -6

We square it, which means to multiply it by itself.

-6(-6)=36        (If you multiply an even number of negative numbers, your answer is positive. Since we have two negative numbers, we get positive 36)

Now, we do the same with the y-values.

-2-(-1)=-1           (two negatives make it a plus, as in minus minus 1 is plus one.)

We square it.

-1(-1)=1              

Now, we add these x and y value differences.

36+1=37

Now, we find the square root using a calculator.

√37≈6.08

Have a wonderful day!

5 0
3 years ago
Which inequality represents all values of x for which the quotient below is O A. 1 O B. XS -1 O c. x 1 O D. x -1
Olegator [25]
We have to solve two inequations:
Equation 1:
30(x-1)≥0
(x-1)≥0/30
(x-1)≥0
x≥1    (solution 1)

Equation 2:
5x²≥0
x≥0

The solution is: solution1 <span>∩ solution2

Teherefore; x≥1
</span>
6 0
3 years ago
Martina spends $15 each time she travels the toll roads. She started the month with $225 in her toll road account. The amount, A
PolarNik [594]

Answer:

$70 is what he would have left. Since each trip is $14 you would multiply that by the amount of times he went which was 11. 14x11 is $154. But you need what he has left so you take his total amount $224-$154 and get $70.

Part b.) 16 times. He has $224 total. You want to find out how many times he can go on the tool roads. We know the toll roads cost $14 each time. So you do $224/14 and get an even amount of 16. He would be able to use it 16 times before he have no money left.

Step-by-step explanation:

6 0
2 years ago
Solve the system of linear equations by graphing. Round the solution to the nearest tenth.
jeyben [28]

Answer:

The approximate solution to the system is (1.2, 4.4)

x = 1.2 and y = 4.4

Step-by-step explanation:

The solution of the system of linear equations equation y = –0.25x + 4.7 and y = 4.9x – 1.64 is shown in the attached graph. The red line represents the equation y = –0.25x + 4.7 and the blue line represents the equation  = 4.9x – 1.64.

The solution of the system of equations is their point of intersection shown on the graph.

The point of intersection is (1.231, 4.392). To the nearest tenth, it is (1.2, 4,4). So x = 1.2 and y = 4.4.

So the approximate solution to the system is (1.2, 4.4)

6 0
3 years ago
Read 2 more answers
Are these answers right? Questions are below!
Ipatiy [6.2K]

Answer:

8 yes

10 yes

11 yes

12 yes

13 yes

7 0
3 years ago
Read 2 more answers
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