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sesenic [268]
3 years ago
15

How do you make x the subject of the formula when your formula is y= abx? Please can you show me how you worked it out if you an

swer it as well thank you
Mathematics
1 answer:
GrogVix [38]3 years ago
7 0
If you want to solve for x you have to get x alone on one side of the equals sign. In order to do that you have to get rid of the stuff on the same side by doing the opposite operation so that it cancels. What you do on one side you do on. the other side to keep the equation true.

y= abx

a and b are being multiplied by x so divide by ab to cancel them out (ab/ab is 1).

y= abx/ab (ab cancels)

now divide the other side by ab to keep the equation true.

y/ab= x

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What is the solution to the inequality?<br><br> 6x − 5 &gt; −29
juin [17]
X > -4 is the answer to the inequality
 
8 0
3 years ago
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Solve system of equation algebraically <br> y = 2x - 3<br> x + y = 18
natima [27]

Answer:

x = 7

y = 11

Step-by-step explanation:

Given the system;

y = 2x - 3

x + y = 18

1. Approach

The easiest way to solve this system of equations is to solve the second equation for the variable (y). Then add the systems, use algebra to solve for the value of (x), then substitute that value back into one of the original equations to solve for the value of (y). Another name for the method in use is the method of elimination, this is when a [erspm manipulates one of the equations in a system of the equation such that when they add the equations, one of the variables eliminatates. Thus, they can solve for the other variable and the backsolve for the value of the unknown variable.

2. Solve one of the equations for a variable

Manipulate the system such that each equation is solved for the same variable,

x + y = 18

Inverse operations,

x + y = 18

-18        -18

x + y - 18 = 0

   -y         -y

x - 18 = -y

3. Use elimination

Now substitute this back into the original system,

y = 2x - 3

-y = x - 18

Add the systems,

y = 2x - 3

-y = x - 18

_________

0 = 3x - 21

Inverse operations,

0 = 3x - 21

+21       +21

21 = 3x

/3    /3

7 = x

4. Find the value of the unknown variable

Backsovle to find the value of (y),

x + y = 18

Substitute,

7 + y = 18

Inverse operations,

7 + y = 18

-7        -7

y = 11

3 0
2 years ago
Read 2 more answers
Antonio Ruiz pays a monthly premium of $175 for health insurance. He can purchase dental care and vision
otez555 [7]
Answer: $240.83
explanation:

Since he pays health insurance MONTHLY, you multiply 175x12=1200.

Since the others are yearly, just add those too 1,200.

1200+595+195=2,890.


Since you are looking for his monthly total you want to divide 2,890 by 12. Giving you the answer $240.83
5 0
3 years ago
Determine the relationship described in each table.<br><br><br> Please help me
SCORPION-xisa [38]
I graphed the given points and based on my graph.

<span> x    y  </span>→ EXPONENTIAL<span><span>
</span> <span> -2 21
</span><span> 1   4
</span><span> 0   1
</span><span> 1   0

</span></span><span> x    y  </span>→ LINEAR<span><span>
</span> <span> -2   6
</span> <span> -1 -2
</span><span> 0   2
</span><span> 1  6
</span></span>
<span> x    y  </span>→ QUADRATIC<span><span>
</span> <span> -2 12
</span> <span> -1 -2
</span><span> 0 -8
</span><span> 1 -6

</span></span><span> <span><span> x   y  </span></span></span>→ EXPONENTIAL<span><span><span>
</span> <span> -2 16
</span> <span> -1  8
</span><span> 0   4
</span><span> 1  2

LINEAR FUNCTIONS always maintain a constant slope. In the above linear function, the slope is 4. 

EXPONENTIAL and QUADRATIC FUNCTIONS have different slope in every point.

Exponential functions can be identified by the immediate increase or decrease in the value of y resulting to a minimal increase or decrease in the value of x. 

Quadratic functions can be identified as such due to the similar points it has after having the vertex. 

</span></span></span>

5 0
3 years ago
What is the sum of the rational expressions below? 2x-1/7x + x/x-2
Anuta_ua [19.1K]
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<span>x-4 (-3x) (expand) </span>
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<span>-3x^2= -12x (bring 12x to other side making it negative) </span>
<span>-3x^2/3x= -12x/-3x (divide both sides by -3x) </span>
<span>x=4 </span>
<span>Hope that helps</span>
6 0
2 years ago
Read 2 more answers
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