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2 years ago

What is the solution to the inequality -13x+6<14-5x

Mathematics

1 answer:

kvv77 [185]2 years ago

7 0

Answer:

x > -1

Step-by-step explanation:

$-13x+6$

$-13x+5x$

$-8x$

$\frac{-8x}{-8} >\frac{8}{-8}$

$x>-1$

* Remember that,

if you have a negative sign (-) infront of the x you have to change the direction of the inequality sign.

Hope this helps you .

Let me know if you have any other questions :-)

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Sarah earns $20 a day working after school. She spent 30% of her daily earnings on

Anarel [89]

Answer:

6 Dallas

Step-by-step explanation:

30 percent of 20$ is 6$

30 percent *20 =

( 30:100)*20 =

( 30*20):100 =

600:100 = 6

6 0

3 years ago

Read 2 more answers

F(x)= x+28/x-7 for inverse functions

ioda

The inverse function of the given function is $\mathbf{= \dfrac{28+7x}{x-1}}$

<h3>What is the inverse of a function?</h3>

A function g is the inverse of a function f, if and only if the values of y= f(x), x = g(y).

From the formula given:

$\mathbf{y=f(x) = \dfrac{x+28}{x-7}}$

Let's substitute x with y;

$\mathbf{y= \dfrac{x+28}{x-7}}$

$\mathbf{x=\dfrac{y+28}{y-7}}$

Solve for y;

$\mathbf{= \dfrac{28+7x}{x-1}}$

Learn more about solving inverse functions here:

brainly.com/question/3831584

#SPJ1

8 0

2 years ago

WILL GIVE 40 BRAINLY

irina [24]

Answer:

$(3,2)$

Step-by-step explanation:

The method of variable substitution is a way of solving a system of equations. It involves solving one equation for a variable and then substituting in the expression that represents the value of the solved variable into the other equation. After doing so, one can solve for the unknown variable and then backsolve for the other variable.

$y=-2x+8\\y=x-1$

In this system, the second equation is already solved for (y), thus one can substitute that expression into the other equation in the system.

$x-1 = -2x + 8$

Now solve using inverse operations,

$x -1 = -2x + 8\\+2x\\\\3x - 1 = 8\\+1\\\\3x =9\\/3\\\\x = 3$

Backsolve to find the value of (y), substitute in the value of (x), and solve for the value of (y).

$y=x - 1\\$

Substitute,

$y=(3)-1$

Solve,

$y=2$

Thus, the answer to this system of equations is the following, $(3,2)$ .

8 0

2 years ago

Is -(x+7)^2+4 a quadratic function?

Oliga [24]

Yes you use the method of your choice to solve (x+7)*(x+7)
Then you distribute the negative -1(x^2+14x+49)
Then you add the four
-x^2-14x-45 should be your answer

5 0

3 years ago

I need help with this please!!!

Andru [333]

Answer:

U = $\frac{TE}{3}$

Step-by-step explanation:

Given

T = $\frac{3U}{E}$

Multiply both sides by E to clear the fraction

TE = 3U ( divide both sides by 3 )

$\frac{TE}{3}$ = U

5 0

3 years ago