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alexdok [17]
4 years ago
11

What is the value of x in the equation 5 x + 3 = 4 x ?

Mathematics
2 answers:
jeka944 years ago
7 0

Answer:

-3

Step-by-step explanation:

5x+3=4x

    -3 =  4x -3

--------------------

5x=4x-3

-4x   -4x

--------------

x = -3

Have a good day and stay safe!

Y_Kistochka [10]4 years ago
5 0

Answer:

x  = -3

Step-by-step explanation:

5 x + 3 = 4 x

Solve for x

5x - 4x + 3 = 0

x + 3 = 0

x = -3

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Prove the quotient of any two rational numbers is a rational number
Brut [27]
That is not possible, a quotient or any equation for that fact can only be rational when it lacks repeating {x} values. Take for instance this 2x11x2^2+(1+10)=

In the equation the {x} values would be most likely described as {2}. Since 2 was the quotient that was being repeating hence that equation not being rational. Hope this helps!



4 0
3 years ago
75 + 50x = 25 + 70x<br><br> a, 5<br> b, 5/6<br> c, 2<br> d, 2.5
Stells [14]

Answer:

D

Step-by-step explanation:

Let's solve your equation step-by-step.

75+50x=25+70x

Step 1: Simplify both sides of the equation.

50x+75=70x+25

Step 2: Subtract 70x from both sides.

50x+75−70x=70x+25−70x

−20x+75=25

Step 3: Subtract 75 from both sides.

−20x+75−75=25−75

−20x=−50

Step 4: Divide both sides by -20.

−20x

−20

=

−50

−20

x=  5/2

5 0
3 years ago
What is the y-value of the vertex of the function f(x) = –(x + 8)(x – 14)? The y-value of the vertex is .
enot [183]
      Best Answer:  <span> y=18x^2+9x+14

y=18(x^2+(1/2)x + 1/16) + 14 - 9/8

y = 18(x + 1/4)^2 + 103/8


For y = a*(x - h)^2 + k, (h, k) the vertex

Your vertex: (- 1/4, 103/8)

Equation of axis of symmetry is x = (x-coordinate of vertex) OR x = - 1/4

y-intercept is y-value when x = 0, y = 14

x-intercept(s) do not exist for this upward opening parabola whose vertex y-value is above the x-axis.

The minimum of the function is the y-value of the vertex, 103/8.
=======================================...

Seems like Dizzle was in too much of a hurry and Jeff just copied Dizzle's answer.

The correct way of doing what dizzle TRIED to do:

For y = a*x^2 + b*x + c, the vertex occurs when x = - b / (2*a)

y=18x^2+9x+14

a = 18
b = 9

- b / (2*a) = - (9) / (2*18) = - 9 / 36 = - 1/4

Take that value for x, evaluate function at that value to get y.
=======================================...
Was so giddy about dizzle's faux pas that I originally did this work. May as well share it:

x-intercept(s) can be found by setting function equal to zero and solving:

y = 18(x + 1/4)^2 + 103/8

0 = 18(x + 1/4)^2 + 103/8

18(x + 1/4)^2 = - 103/8

(x + 1/4)^2 = - 103/144

x + 1/4 = +/- i*sqrt(103)/12

x = - 1/4 +/- i*sqrt(103)/12 OR x = [- 3 +/- i*sqrt(103)] / 12

These are the roots of the equation f(x) = 0

Since the roots are complex, there are no x-intercepts. The function is entirely above the x-axis. </span>
8 0
3 years ago
Read 2 more answers
What is a factor can you ples tell me what a factor is
scoundrel [369]

Answer:

the numbers being multiplied in an equation

Step-by-step explanation:

Example:

4 x 2 =  8

4 and 2 are the factors in this equation

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3 years ago
How many hours are in 72.5 weeks
NeTakaya
The answer is 12,180 :)
7 0
3 years ago
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