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4 years ago

How do you solve this problem? With work!!

Mathematics

2 answers:

Evgesh-ka [11]4 years ago

7 0

You would put 9 times v because you are multiplying it to the 9 and you do not know what v is then you would divide it by 3 and get your answer so for example if you should have gotten 9 times v = 72 then 72 divided by 3 = 24 and 24 divided by 3 = 8

Ede4ka [16]4 years ago

7 0

The goal to solving this problem is finding the value of v by isolating it on one side, meaning that you must rid of the constant terms on that particular side of the equation. Since v + 9 is being divided by 3, you must first eliminate the 3 by multiplying that side of the equation by 3, and whatever you do to one side of an equation you must do it to the other side as well, so you also multiply 8 by three. This leaves the equation as v + 9=24. Now you must cancel out the 9 that’s one the side of the equation with the variable, so subtract both sides of the equation by 9. This leaves you with v=15. Hope this helps.

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A square has a side length of X centimeters. One dimension increases by 4 cm and the other dimension increases by 2 cm, forming

timama [110]

(a) Look at the picture below: we started with the square ABCD, with side length $x$ , and we built the rectangle AEFG such that

$AE=AB+4=x+4,\quad AG=AC+2=x+2$

(b) Since the dimensions of AEFG are $x+4$ and $x+2$ , its area will be the product of its dimensions:

$A=(x+2)(x+4)=x^2+6x+8$

(c) The area $A(x)$ is a function of the side length $x$ :

$A(x)=x^2+6x+8$

(d) Since $A(x)$ is a polynomial with degree 2, it represents a parabola. In order to find the x intercept, we must set $y=0$ :

$x^2+6x+8=0 \iff x=-2\lor x=-4$

Similarly, in order to find the y intercept, we must set $x=0$ :

$A(0)=0^2+6\cdot 0+8=8$

The x-coordinate of the vertex is given by

$x=-\dfrac{b}{2a}=-\dfrac{6}{2}=-3$

And its y coordinate is given by

$A(-3)=(-3)^2+6\cdot (-3)+8=9-18+8=-1$

The line of symmetry is the vertical line passing through the vertex, so it must be

$x=-3$

(see the second picture for the graph)

(e) The graph opens upward. We knew that from the equation, because given a parabola

$y=ax^2+bx+c=0$

its graph will open upwards if $a>0$ , downwards if $a$ . In your case, $a=1$ , so it's positive and the parabola opens upwards.

6 0

3 years ago

Help help help help help help

pashok25 [27]

Answer:

Step-by-step explanation:

According to basic exponential rules, whenever we divide a two same variables, we subtract their powers so $\frac{g^{-m} }{g^{n} }$ would equal

=> $g^{-m-n}$

4 0

3 years ago

What is the solution to : 3(1/2 m - 3) =45

VladimirAG [237]

Answer:

$m=36$

Step-by-step explanation:

We can solve for this equation by isolating $m$ on one side. To do this, we can "reverse" the equation.

$3(\frac{1}{2}m - 3) = 45$

Let's divide both sides by 3.

$3(\frac{1}{2}m-3)\div3 = 45\div3\\\\\frac{1}{2}m - 3 = 15$

Add 3 to both sides:

$\frac{1}{2}m - 3 + 3 = 15 + 3\\\\\frac{1}{2}m = 18$

Multiply both sides by two (since $\frac{1}{2}\cdot2=1$ )

$\frac{1}{2}m \cdot 2 = 18 \cdot 2\\\\m = 36$

Hope this helped!

6 0

3 years ago

Read 2 more answers

Solve 4x + 11 = k for x. O A. x-4-11 B. x= k-7 C. x = 4k - 44 D. x = K-11 4

Arisa [49]

Answer:

x= 1/4k + −11/4

Step-by-step explanation:

4x+11=k

Step 1: Add -11 to both sides.

4x+11+−11=k+−11

4x=k−11

Step 2: Divide both sides by 4.

4x/4 = k−11/4

x=1/4k + −11/4

Answer:

x=1/4k + −11/4

If you are solving for K:

Let's solve for k.

4x+11=k

Step 1: Flip the equation.

k=4x+11

Answer:

k=4x+11

5 0

3 years ago

A charity is planning to raffle off a new car donated by a local car dealer. The charity wants to raise at least 65,000. It expe

MariettaO [177]

Answer:

they can sell 2000 tickets each ticket is worth 29.15

Step-by-step explanation:

65,000 - 5000 - 1700 = 58300

6 0

4 years ago