All categories

3 years ago

The perimeter of a pool table is 30 feet. The table is twice as long as it is wide. What is the length of the pool table?

Mathematics

1 answer:

olga55 [171]3 years ago

8 0

So, 30 is the perimeter. We are told the table is twice as long as it is wide.

So, we have think of 2 numbers, one being twice as big than the other. So, it is a rectangle The two number represents the length and the width. To find the perimeter we add all the lengths and the widths. Since the pool table is a rectangle we have two lengths and two widths.

So,

the tow numbers be 10 and 5. 5 is half of 10 and, when multiplied by 2 it is 10. So just to make sure the numbers 5 and 10 work out lets do a calculation.

So,

10+5+10+5 = 30feet. This proves that the sides are these two numbers.

You might be interested in

Which multiplication property is 6 x 7 = ( 6 x 7) + ( 6 x 2)?

Hatshy [7]

I am not sure if it's associative property but if it's wrong I'm so sorry. Anyways hope it helps

4 0

3 years ago

Help me please thank you

Charra [1.4K]

Answer: The answer is y=-2x+5

4 0

4 years ago

There are many cylinders with a height of 18 meters. Let represent the radius in meters and represent the volume in cubic meters

antiseptic1488 [7]

Answer:

Step-by-step explanation:

1). Equation that represents the volume of a cylinder,

V = πr²h

Here, r = radius of the cylinder

h = Height of the cylinder

2). Fromm the given formula of volume,

r(In m) V(In cubic meters)

1 56.55

2 226.19

3 508.94

3). If the radius is doubled from 1 m to 2 m,

At r = 1 m, Volume (V₁) = 56.55 m³

At r = 2 m, Volume (V₂) = 226.19

$\frac{V_2}{V_1}=\frac{226.19}{56.55}$

= 4

Therefore, volume is not doubled when radius of the cylinder is doubled.

8 0

3 years ago

Determine the amplitude of the following:

nadya68 [22]

QUESTION 1

The first function is
$y = \sin(4x)$
A function of the form
$y = A \sin(Bx)$

has amplitude equal to

$|A|$

The amplitude of
$y = \sin(4x)$

is

$1$

QUESTION 2

The given function is

$y = 4 \cos(x)$

A trigonometric function of the form
$y = A \cos(Bx)$

also has an amplitude of
$|A|$

The amplitude of
$y = 4 \cos(x)$

is

$4$

QUESTION 3

The given trigonometric function is

$y = 3 \sin( \frac{2}{3} x)$

The amplitude of this trigonometric function is

$3$

QUESTION 4.

The given trigonometric function is

$y = 3 \cos(x)$

The amplitude of this cosine function is
$3$

8 0

3 years ago

6x(2x+y-5) rewrite as a sum

Svetach [21]

Answer: 12x^2+6xy−30x

^=power sighn

Step-by-step explanation:

6x(2x+y−5)=(6x)(2x+y+−5)=(6x)(2x)+(6x)(y)+(6x)(−5)=12x^2+6xy−30x

7 0

3 years ago