The length of a rectangle is four times its width. if the perimeter of the rectangle is 90 cm, find its length and width

Answers

Answer 1

Answer:

length 36, width, 9.

Step-by-step explanation:

you are trying to find "X" and it's 4 times the size of y, the whole thing is equal to 90. it would look like this

y=4x

y(4x) + x = 90

5x=90

90/5= 18

the rest is the "y" value, 72.

divide both by 2 because rectangles have 4 sides, and you get the answer above.


Related Questions

please help me with this and show work thank you!!

Answers

[tex]21x^{2} -16x^{2} = 5x^{2} \\-18x-9x=-27x\\4-8=-4\\25x^{3} +5x^{2} -27x-4\\A[/tex]

Please help!!! How do I go about solving the cardinality of the Venn Diagram shown below?

Answers

The process for determining the cardinal number of a set is very simple and applicable for any finite set of elements. Count the number of elements in the set and identify this value as the cardinal number. There are five elements within the set R; therefore, the cardinality of the example set R is 5.

Jolie uses childcare facilities at her gym. Her monthly dues are $32, and childcare is $9 per visit this month she does not wish to spend more than $122 for both dues and childcare. If x represents the number of times she can use childcare services
Which of the following inequalities symbolizes this situation?
x

Answers

Answer:

A

Step-by-step explanation:

Let x= number of visits she makes

9(number of visits she makes) + 32 (less than or equal to) <= 122

9x+32<= 122

For the sequence 2, 6, 10, 14,. . .

a) Write the recursive rule:

b) Write the explicit rule:

Answers

use so cratic instead of this

Point A is located at (h, k). Point B is located at (h,;). Mis the midpoint of segment
AB. Determine the coordinates of point M.
w

Answers

Answer: 6

Step-by-step explanation:

Answer please! I will give out brainlest!

Answers

It is the the 3 option I hope this helps

In a homerun derby competition there was 32 homeruns hit out of 124 hits approximately what percent of his war homeruns

Answers

Answer:

25.81%

Step-by-step explanation:

32/124 were homeruns, to make it into a percentage, multiply it by 100%

32/124 × 100 = 25.81%

Answer:

25%

Step-by-step explanation:

32 divided by 124 =.2580

help please this is timed

Answers

Answer:

$1.25x+$7=$43.25

Step-by-step explanation:

Find the value of x in the following ratio 3:15=x:30
b) x :9 =4=36​

Answers

this doesn’t make any sense?

b)
Which is the largest of the following numbers?
0.1, 0.02, 0.003, 0.0004, 0.00005

PLEASE HELP DUE TONIGHT!!! THANK YOU SO MUCH.

Answers

0.1, guessing they mean largest in value

We need to use the place values to compare different numbers.

By only looking at the place value, we can see that the largest number is: 0.1

Let's see how to get the solution.

We can define place value as the place where a digit is with respect to the decimal point.

The digits that are at the far left are the larger ones, for example in:

11

The left one represents 10, while the right one represents 1:

10 + 1 = 11

The same happens when we look at the right of the decimal point, there the digits at the left will be larger than the ones at the right.

0.10 is larger than 0.01

From this, we can see that for the set:

{0.1, 0.02, 0.003, 0.0004, 0.00005}

The largest number will be the one with the leftmost first digit different than zero, which is the first one: 0.1

If you want to learn more, you can read:

https://brainly.com/question/16601463

How do u do this question?

Answers

A --------¢ D

B --------¢ E

C --------¢ F

Just match like this buddy.

Which of the following are ordered pairs for the equation y = 1/3x - 1?


(0,3) (0,-1) (6,1)


(3,0) (0,-1) (6,1)


(0,-1) (1,-4) (2,-7)


(0,-1) (-3,0) (-4,3)

Answers

Answer:

answer is the 2nd one

Step-by-step explanation:

y = 1/3(3) - 1 = 1 - 1 = 0   (3,0)

y = 1/3(0) - 1 = 0 - 1 = -1   (0, -1)

y= 1/3(6) - 1 = 2 - 1 = 1     (6, 1)

A radio transmission tower is 180 feet tall. How long should a guy wire be if it is to be attached 8 feet from the top and is to make an angle of 22° with the ground? Give your answer to the nearest tenth of a foot.

Answers

Answer:

453.95 feet exactly

Step-by-step explanation:

A rectangle has a length 5 meters more than five times the
width. The area of the rectangle is less than 100 meters
squared. Write an expression that represents all possible
widths (use the variable x) of the rectangle. Write your answer
as an inequality, a

Answers

Given:

A rectangle has a length 5 meters more than five times the  width.

The area of the rectangle is less than 100 meters  squared.

To find:

The expression or inequality that represents all possible  widths of the rectangle.

Solution:

Let x be the width of the rectangle.

Length of the rectangle is 5 meters more than five times the  width.

[tex]length=5x+5[/tex]

Area of rectangle is

[tex]Area=length \times width[/tex]

[tex]Area=(5x+5) \times x[/tex]

[tex]Area=5x^2+5x[/tex]

The area of the rectangle is less than 100 meters  squared.

[tex]5x^2+5x<100[/tex]

[tex]5x^2+5x-100<0[/tex]

Divide both sides by 5.

[tex]x^2+x-20<0[/tex]

[tex]x^2+5x-4x-20<0[/tex]

[tex]x(x+5)-4(x+5)<0[/tex]

[tex](x+5)(x-4)<0[/tex]

It is true if one factor is negative and other is positive. So,

[tex]x-4<0\Rightarrow x<4[/tex]     ...(i)

[tex]x+5>0\Rightarrow x>-5[/tex]       ...(ii)

Using (i) and (ii), we get

[tex]-5<x<4[/tex]

Therefore, the required expression or inequality for possible

widths of the rectangle is [tex]-5<x<4[/tex].

Which is larger: 25% of 38 OR 30% of 41

Answers

30% of 41 because it is 12.3 and 25% of 38 is 9.5

Question in the picture

Answers

Answer:

Average rate of change =250

Step-by-step explanation:

Formula to determine average rate of change of the function,

Average rate of change = [tex]\frac{f(x_2)-f(x_1)}{x_2-x_1}[/tex]

Where [tex]x_1[/tex] and [tex]x_2[/tex] are the points representing number of years after year 2000.

Since [tex]x_1[/tex] = 5 and [tex]x_2=19[/tex],

[tex]f(x_2)=650[/tex]

And [tex]f(x_1)=300[/tex]

Now average rate of change = [tex]\frac{650-300}{19-5}[/tex]

                                                = [tex]\frac{350}{14}[/tex]

                                                = 250

Therefore, average rate of change of the number of influenza cases from 2005 to 2019 is 250.

Please help me. I'm honestly really confused. I need the answers as soon as possible!

Answers

Answer:

which class can you say then I can tell answer

1
3
5
× 1
1
3
=
8
5
×
4
3
=
Find the product of the mixed numbers. Choose the correct answer.
StartFraction 4 Over 5 EndFraction
1 and StartFraction 3 Over 15 EndFraction
2 and one-half
2 and StartFraction 2 Over 15 EndFraction

Answers

Answer:

2 2/15

Step-by-step explanation:

how many solutions does the following equation have ? 12x+18=-3(-4x-6)

Answers

(−∞,∞) infinite solutions

Subtract using the number line.

​ −35−(−25) ​

Select the location on the number line to plot the difference.

Answers

Answer:

I'm assuming that the answer is -10

Step-by-step explanation:

Because you are being asked to subtract a negative, the two negative signs cancel each other out to make the equation -35+25. So the answer is -10.

Answer:

-1/5 im right hope all of you have a wonderful day

Step-by-step explanation:

Why is the answer A?

Answers

Answer:

B) 2 frozen dinners and 2 dozen jelly doughnuts

Step-by-step explanation:

Calculate the total utility for each option.

A) 46

B) 32 + 21 = 53

C) 16 + 30 = 46

D) 28

Option B has the highest total utility.


Solve for z.
I need help please

Answers

Answer:

Z is 52 degrees.

Step-by-step explanation:

52 plus 38 is 90

Answer:

52°

Step-by-step explanation:

You can say this a 'cardesian plane', where adjacent quadrants are at right angle to each other. So,

z + 38 = 90°

z = 90° - 38° = 52°

What is the image of point (0,2) after a rotation of 90° counterclockwise about the origin?

Answers

Answer:

(-2,0)

Step-by-step explanation:

remember the rule for 90 degree clockwise is (-y,x) opposite y and x

the negative in there DOES NOT mean it will always be negative it means opposite but in this case yes it's negative because the opposite of positive is negative

Hope this helps dude, I'm also learning this in online school lol. ^-^

The image of point (0,2) after a rotation of 90° counterclockwise about the origin is (-2, 0).

The given coordinate point is (0, 2).

What is rotation rule of 90°?

Here are the rotation rules: 90° clockwise rotation: (x, y) becomes (y, -x) 90° counterclockwise rotation: (x, y) becomes (-y, x) 180° clockwise and counterclockwise rotation: (x, y) becomes (-x,-y).

The rule of 90° counterclockwise rotation: (x, y) becomes (-y, x), here

(-2, 0)

Therefore, the image of point (0,2) after a rotation of 90° counterclockwise about the origin is (-2, 0).

Learn more about the rotation of 90° counterclockwise here:

https://brainly.com/question/1571997.

#SPJ2

Find the lcm of 2,3,7 and tell me how u got ur answer
if its CORRECT with ur reasoning ill give brainlest

Answers

Answer:

42

Step-by-step explanation:

acomoda 2 8 3 y 4 en este orden con las operaciones +-×÷ de forma que el resultado sea 76 y 40







Answers

Answer:

[(2*8) + 3] *4 = 76

[2*(8 - 3)]*4 = 40

Step-by-step explanation:

Los paréntesis ( ), corchetes [ ] y llaves {} son símbolos de agrupación que indican el orden de las cuatro operaciones aritméticas básicas (suma, resta, multiplicación y división). Las reglas del orden de operaciones establece que se debe realizar primero el cálculo dentro de los símbolos de agrupación.

En otras palabras, la jerarquía de operaciones es el orden en el que hay que realizar las distintas operaciones, ya que unas tienen prioridad frente a otras. Y establece primero debes empezar por resolver los paréntesis, luego los corchetes y finalmente las llaves. Es decir, cuando haya símbolos de agrupación dentro de símbolos de agrupación, calcula de adentro hacia afuera. Esto es, empieza simplificando los símbolos de agrupación en el centro.

Para obtener 76, se pueden realizar la siguiente operación combinada:

[(2*8) + 3] *4

Aplicando lo anteriormente mencionado de la jerarquía de operaciones, comienzas por resolver el paréntesis:

[16 + 3]*4

Ahora, resolviendo el corchete:

19*4

Finalmente, resolviendo la multiplicación:

19*4= 76

Entonces [(2*8) + 3] *4 =76

Para obtener 40, se pueden realizar la siguiente operación combinada:

[2*(8 - 3)]*4

Comenzando a resolver el paréntesis:

[2*5]*4

Ahora, resolviendo el corchete:

10*4

Finalmente, resolviendo la multiplicación:

10*4= 40

Entonces [2*(8 - 3)]*4 = 40

In total, Jessica and Jonathan have created 19.64 cups of lemonade. They sell the lemonade in servings of 1.25 cup.
How many FULL servings will they be able to sell?

Answers

15

The left over would be 70% of a cup so 15

Answer:

15 full servings before not having enough left over for another full serving.

Step-by-step explanation:

5x + y = 7
20x + 2 = y

Answers

Answer:

x=0.2, y=6

Step-by-step explanation:

Since y=20x+2, 5x+y=7 => 5x + (20x +2 ) = 7

                                                     25x + 2 = 7

                                                           25x = 5

                                                                x = 0.2

so y = 20x + 2 = 20* 0.2 +2 = 4 + 2 = 6

so the final solution is [tex]\left \{ {{y=6} \atop {x=0.2}} \right.[/tex]

The values of x and y for the given simultaneous equation are;

x = 0.2 and y = 6

We are given 2 simultaneous equations;

5x + y = 7   ---(eq 1)

20x + 2 = y   ----(eq 2)

Put 20x + 2 for y in eq 1;

5x + 20x + 2 = 7

25x + 2 = 7

25x = 7 - 2

25x = 5

x = 5/25

x = 0.2

Put 0.2 for x in eq 2 to get;

20(0.2) + 2 = y

4 + 2 = y

y = 6

In conclusion, the values of x and y are x = 0.2 and y = 6.

Read more at; https://brainly.com/question/24556232

I need help with my homework I did it but it is wrong.​

Answers

Answer:

π= 3V/(4r³)

Step-by-step explanation:

Solve for π

V = 4/3πr³3/4V = πr³3V/(4r³) = ππ= 3V/(4r³)

Answer:

π = 3V       4r³

Step-by-step explanation:

V = 4 π r³

      3

solve for π

3*V = 4π r³

3V = π

4r³

therefore.

π = 3V

      4r³

. Let x = 20: Evaluate x + x *2 - x/5

Answers

Answer:

Assuming this: * means a multiplication symbol, the answer is 56.

Step-by-step explanation:

1. Replace every single x with 20.

2. 20 + 20 * 2 - 20/5

3. Simplify the equation

4. 20 + 40 - 4  (Order of operations. To remember this use

P(parentheses)

E(exponents)

M(multiplication)

D(division)

A(addition)

S(subtraction)

Top to bottom represents which operations you should do first while simplifiying an equation. Addition and subtraction are in equal places. This is the same with multiplication and division.

5. 20 + 40= 60 - 4= 56

Wright the number 972,274 in words​

Answers

Nine hundred seventy two thousand two hundred seventy four

Answer:

Nine hundred seventy two thousand two hundred seventy four. Hope this helps

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