Ask question

Ask question

All categories

3 years ago

14

The price of a skateboard is 5 dollars less than 3 times the price of a pair of knee pads. Let k represent the price of the knee

pads. Write an expression that gives the price of the skateboard

1 answer:

makkiz [27]3 years ago

8 0

Answer:

Price of skateboard= $3k-5$

Step-by-step explanation:

Given: The price of a skateboard is 5 dollars less than 3 times the price of a pair of knee pads.

Lets assume the price of the knee pads be "k".

As given, The price of a skateboard is 5 dollars less than 3 times the price of a pair of knee pads.

∴ y-intercept is 5 and slope will be 3.

using y intercept expression to form an expression.

we know, $y= mx+b$

∴ Price of skateboard= 3\times k-5

Price of skateboard= $3k-5$

Hence, expression for price of skateboard is $3k-5$

You might be interested in

Que es el concepto de funcion?

den301095 [7]

El concepto básico de la función es que puede tomar cualquier número de valores, pero puede devolver solo un valor. La función es como una máquina en la que podemos darle una entrada / algo y obtener una salida o un conjunto de salidas. La entrada o el conjunto de entradas se llama dominio.

Sorry I Don't Speak Spanish That Good

5 0

3 years ago

Solve the system of equations by elimination. Show your work. i’ll give brainliest

My name is Ann [436]

Answer:

x = 5

y = 4

Step-by-step explanation:

multiply the second equation by -1 and add the first equation to eliminate "x"

$4x+6y=44\\-4x-2y=-28$
_____________

$4y=16$

$y=16/4 =4$

Replace "y" in the first equation:

$4x+6(4)=44$

$4x+24=44$

$4x=44-24$

$x=20/4=5$

Hope this helps

5 0

2 years ago

Read 2 more answers

SOMEONE HELPFUL PLZ ANSWER!!!!!!!! WILL MARK BRAINLIEST!!!!!!!!!

Eva8 [605]

Answer:5,6 or 15,2

5x6x1.5 =45

15x2x1.5=45

3 0

3 years ago

How long it will take 2000$ to double if it is invested at 6% interest compounded semi annually

katen-ka-za [31]

Answer:

Step-by-step explanation:

4 0

3 years ago

Regular hexagon ABCDEF has vertices at A(4, 4!3), B(8, 4!3), C(10, 2!3), D(8, 0), E(4, 0) and F(2, 2!3).

marissa [1.9K]

Since the given hexagon is a regular hexagon all it's sides will be of equal length. Now, we know that the Area of any regular hexagon is given by:

$A=\frac{3\sqrt{3}}{2} a^2$

Where $A$ is the area of the regular hexagon

$a$ is the side length of the regular hexagon

Also, it's Perimeter is given by:

$P=6a$

Thus, all that we need to do is to find the side length of any one of the sides and to do that let us have a look at at the data of vertices points given and find out which points are definitely adjacent to each other and are also easy to calculate.

A quick search will yield that D(8, 0) and E(4, 0) are definitely adjacent to each other.

Please check the attached file here for a better understanding of the diagram of the original regular hexagon. Points D and E indeed are adjacent to each other.

Let us now find the distance between the points D and E using the distance formula which is as:

$d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

Where $d$ is the distance.

$(x_1,y_1)$ and $(x_2,y_2)$ are the coordinates of points D and E respectively. (please note that interchanging the values of the coordinates will not alter the distance $d$ )

Applying the above formula we get:

$d=\sqrt{(8-4)^2+(0-0)^2} =\sqrt{4^2}=4$

$\therefore d=4$

We know that this distance is the side length of the given regular hexagon.

$\therefore d=a=4$

Now, if the sides of the given regular polygon are reduced by 40%, then the new length of the sides will be:

$a_{small}=4-\frac{40}{100}\times 4=2.4$

Thus, the area of the smaller hexagon will be:

$A_{small}=\frac{3\sqrt{3}}{2} a_{small}^2=\frac{3\sqrt{3}}{2} (2.4)^2\approx14.96$ unit squared

and the new smaller perimeter will be:

$P_{small}=6a_{small}=6\times 2.4=14.4$ unit

Which are the required answers.

5 0

3 years ago