the length of the rectangle is 4cm more than it's width.if the perimeter is 20cm. find the width​

Answers

Answer 1

Answer:

  3 cm

Step-by-step explanation:

The given relation between length and width can be used in the perimeter formula to find the width.

__

Let w represent the width of the rectangle in centimeters. The length is 4 cm more, so can be represented by (w+4). Using these values and the given perimeter in the perimeter formula, we find ...

  P = 2(L +W) . . . . . perimeter formula

  20 = 2((w +4) +w) . . . . known values substituted

  10 = 2w +4 . . . . . . . . divide by 2, collect terms

  6 = 2w . . . . . . . . . subtract 4

  3 = w . . . . . . . . divide by 2

The width of the rectangle is 3 cm.

__

Additional comment

The length is 7 cm.


Related Questions

There are eleven people on a softball team and nine different positions. work through the questions to determine how many ways a coach can choose the players for the positions if amy does not want to pitch. if there are eleven people on the team and nine positions, how many total arrangements of the players can be made? if amy does not want to play pitcher, then there are now people available to pitch. assuming the pitcher has already been chosen, there are ten remaining players and remaining positions. how many ways are there to arrange the remaining players and positions?

Answers

Permutation helps us to know the number of ways an object can be arranged in a particular manner. The number of ways the remaining player can be arranged is 1,814,400.

What is Permutation?

Permutation helps us to know the number of ways an object can be arranged in a particular manner. A permutation is denoted by 'P'.

[tex]^nP_r = \dfrac{n!}{(n-r)!}[/tex]

where,

n is the number of choices available,

r is the choices to be made.

Given that the team has 11 players while there are only 9 positions available, therefore, the number of ways the coach can choose 9 people and arrange them is,

[tex]^{11}P_9 = \dfrac{11!}{(11-9)!} = \dfrac{11!}{2!} = 19,958,400[/tex]

Now, since Amy does not want to be a pitcher, therefore, the number of ways the remaining people can be arranged in the place of the pitcher is 10.  Also, the position remaining in the team is 8, while the number of people remaining is 10. Thus, the number of ways the remaining people can be arranged are,

[tex]\text{Number of ways}= ^{10}P_8 =\dfrac{10!}{(10-8)!} = 1,814,400[/tex]

Hence, the number of ways the remaining player can be arranged is 1,814,400.

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Answer:

19,958,400,

10,

8,

1,814,400

Step-by-step explanation:

What is the value of Sin F

Answers

Answer:

99/101

Step-by-step explanation:

sin is essentially opposite over hypotenuse

hence, 99/101 is = sin(F)

A number cube is rolled what is the probability that the result is a number greater than five?

Answers

Answer:

The answer is 1/3

Step-by-step explanation:

Let the events of getting the no. greater than 4 be (>4).

Then,

n(s) = 6

n(>4) = 2

P(>4) = n(>4)/n(s)

=2/6

=1/3

The area of a rectangle is (x3 – 5x2 3x – 15), and the width of the rectangle is (x2 3). if area = length × width, what is the length of the rectangle? x 5 x – 15 x 15 x – 5

Answers

The length of the rectangle is determined as x - 5 while the width is x² + 3.

Length of the rectangle

The length of the rectangle is determined by the following formula shown below;

Area = Length x width

L = A/w

           x  - 5

          ------------------------------------

x² + 3 √x³ - 5x² + 3x - 15

           -(x³  + 3x)

        --------------------------

             - 5x²  - 15

              -5x² - 15

        ----------------------------

                     0

Thus, the length of the rectangle is determined as x - 5 while the width is x² + 3.

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how to do this?? help me please ​

Answers

Answer:

sinA = 0.79        tanA = 1.3

Step-by-step explanation:

Step1:

Find the length of the line going through the middle from A to C by using pythagorean theorem.

a = 13

b = 12

c= ?

c = sqrt(a^2 + b^2)

c = sqrt(13^2 +12^2)

c = 17.69

Step 2:

Use pythagorean theorem again to find the length of the line going from A to D.

a = ?

b = 14

c = 17.69

c^2 = a^2 + b^2

Now solve for a.

a^2 = c^2 - b^2

a = sqrt(c^2 - b^2)

a = sqrt(17.69^2 - 14^2)

a = 10.81

Step 3:

Use trignometry to find the values of sinA and tanA

sinA = opposite/hypotenuse = 14/17.69 = 0.79

tanA = opposite/adjacent = 14/10.81 =1.3

can i please get the answers for this? i’ve been trying to find it for half an hour

Answers

Answer:

What's the full question? I'm not sure how to help with just this information :(

a store sells trail mix in a 5-pound bag. one serving of trail mix is 114 grams. 1 pound ≈ 454 grams. what is the approximate number of servings in a 5-pound bag of trail mix, rounded to the nearest tenth?

Answers

Not rounded it is 19 servings

Explanation: Here if 1 pound= 454 grams you would times it by 5 for the 5 pound bag. You would next divided your answer (2,270) by 114 grams because that equals 1 serving. what ever your answer then is how many servings.

Please, help! 20 points
Mrs. Garcia’s class sold burgers for $1.36 each and Mr. Runner’s class sold salads for $1.65 each. Together, the classes sold 79 items and earned $118.17 for their school.
(a) Write a system of equations that model the problem.
x + s = 79 1.36(x) + 1.65(s) = 118.17
(b) Solve the systems of equations from part a.
(c) Whose class sold more items?
(d) Which class earned more money?

Answers

The 42 burgers are sold by Mrs. Garcia's class at $57.12 and 37 salad is sold by Mr. Runner’s class at $61.05.

What is a system of equation?

A system of equation is the set of equation in which the finite set of equation is present for which the common solution is sought.

Mrs. Garcia’s class sold burgers for $1.36 each and Mr. Runner’s class sold salads for $1.65 each. Together, the classes sold 79 items and earned $118.17 for their school.

(a) Write a system of equations that model the problem.

Let x burgers are sold by Mrs. Garcia's class and s salad is sold by Mr. Runner’s class. Together, the classes sold 79 items for their school. Thus,

[tex]x + s = 79[/tex]            .....1

Mrs. Garcia’s class sold burgers for $1.36 each and Mr. Runner’s class sold salads for $1.65 each. Together, the classes earned $118.17 for their school. Thus,

[tex]1.36(x) + 1.65(s) = 118.17\\1.36x + 1.65s = 118.17[/tex]             ....2

(b) Solve the systems of equations from part a.

Rewrite the first equation,

[tex]x + s = 79 \\ x = 79-s[/tex]             .....3

Put this value of x in equation 2,

[tex]1.36(79-s) + 1.65s = 118.17\\107.44-1.36s + 1.65s = 118.17\\0.29s=118.17-107.44\\s=\dfrac{10.73}{0.29}\\s=37[/tex]

Put this value in equation 3,

[tex]x=79-37\\x=42[/tex]

(c) Whose class sold more items?

42 burgers are sold by Mrs. Garcia's class and 37 salad is sold by Mr. Runner’s class. Thus, Mrs. Garcia's class sold more items.

(d) Which class earned more money?

Money earned by Mrs. Garcia's class by selling 42 burger at $1.36 each is,

[tex]M_x=1.36\times42\\M_x=57.12[/tex]

Money earned by Mr. Runner’s class by selling 37 salad at $1.65 each is,

[tex]M_s=1.65\times37\\M_s=61.05[/tex]

Thus, Mr. Runner’s class earned more money.

Hence, the 42 burgers are sold by Mrs. Garcia's class at $57.12 and 37 salad is sold by Mr. Runner’s class at $61.05.

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Dan purchased a set of knitting needles for $11 and 6 identical packs of yarn. The total cost was $89.
How much did each pack of yarn cost?

Answers

Answer:

13$

Step-by-step explanation:

Dan purchased a set of knitting needles for $11 and 6 identical packs of yarn. The total cost was $89.

How muc[tex]rweds[/tex]h did each pack of yarn cost?

The total cost of each pack of yarn is $13.

What is a total cost?

The total cost of an item is the sum of the cost of all items that are purchased. Total cost for more items can be found by multiplying the number of items and the cost of the individual item.

For the given situation,

There are two items purchased knitting needles and packs of yarn.

Cost of knitting needle = $11

Number of packs of yarn purchased = 6

Total cost = $89

Let the cost of yarn be x.

The cost of the yarn can be find by using the equation,

Total cost = Cost of knitting needle + (number of yarn purchased × x)

⇒ [tex]89=11+6x[/tex]

⇒ [tex]6x=78[/tex]

⇒ [tex]x=13[/tex]

Hence we can conclude that the cost of each pack of yarn is $13.

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2x - 7 = 3 what does X equal to?

Answers

Answer:

5

Step-by-step explanation:

1. Add 7 to both sides of the equation:

2x = 10

2. Divide both sides by 2:

2x/2 = 10/2

x = 5

hope this helps!

Answer:

x=5

Step-by-step explanation:

2x-7+=3

add the 7 to both sides to cancel it out

2x=10

divide by 2

x=5

find the perimeter of the square if the side length of the square is (3a+6b) units

a. 24a+12b
b. 12a+24b
c. 4a+6b
d. 12a-24b

Answers

Answer:

B

Step-by-step explanation:

Length of one side= 3a+6b

Perimeter= sum of 4 sides= 4(3a+6b) = 12a+24b

HELP PLEASE I WILL GIVE BRAINLIEST IF I CAN
The perimeter of an equilateral triangle must be at most 57 feet. Create an inequality to find what the length of the sides should be. Solve the inequality by showing all of your work and explaining each step.

Answers

Answer:

[tex]L[/tex] ≤ [tex]29[/tex]

Step-by-step explanation:

Given

Perimeter = 57 (at most)

Required

Determine the length of each side

The term at most in the values of the perimeter shows that the expression is an inequality and it means that perimeter can't exceed that value;

Let L represents the length of each sides;

Perimeter [tex]=L+L+L[/tex]

So,

[tex]L+L+L[/tex] ≤ [tex]57[/tex]

[tex]3L[/tex] ≤ [tex]57[/tex]

Divide both sides by 3

[tex]3L[/tex] ÷ [tex]3[/tex] ≤ [tex]57[/tex] ÷ [tex]3[/tex]

[tex]L[/tex] ≤ [tex]29[/tex]

Which of the following sets of ordered pairs does not represent a function?

Answers

Answer:

d

Step-by-step explanation:

Write a rule for the nth term of the sequence. Then find a20. Assume the first termis a₁. 86, 79, 72, 65…

Answers

Answer:

an = a(n-1) - 7

Step-by-step explanation:

the second term is smaller than the first term 7.

a20 = a19 - 7

a19 = a18 - 7

=> a20 = (a18 - 7) - 7

Then you can accumalate until a1

-> a20 = a1 - 19*7 = 86 - 19*7 = -47

If Jim weights 100 pounds, what mass in kilograms does the person on the other side need to be for the sessão to be balanced?

Answers

Answer:

45.359237

Step-by-step explanation:

I believe this is the answer because if u convert u get 45.35

Ms. Roman spent $210 to buy 3 jewelry boxes and 3 necklaces as gifts. Each jewelry box cost $20. Each necklace cost the same amount. Which expression can be simplified to find the cost of each necklace? 210 = 3 + 20​

Answers

Answer:

70-20=x

Step-by-step explanation:

210=3*20+3*necklace

3*necklace=210-3*20

necklace=70-20

i will give 100points

Answers

Given↷ set of data ⇢3.9 ,2.1,0.8,1.5,4.1To find↷The meanMean when each piece is increased by 5Mean when each piece is doubled Answer↷2.487.484.96

Solution↷

#1)

Mean of a set of date = sum of observations/Total no. of observationsMean of the given set of data = 3.9+2.1+0.8+1.5+4.1/5Mean of the given set of data = 2.48

#2)

Adding 5 to each piece of data ,we get

⇢3.9+5 = 8.9

⇢2.1 +5 = 7.1

⇢0.8+5 = 5.8

⇢1.5 +5 = 6.5

⇢4.1 +5 = 9.1

Mean = 8.9+7.1+5.8+6.5+9.1/5Mean = 7.48

#3)

Mean when each piece of data is doubled= 2(3.9+2.1+0.8+1.5+4.1)/5Mean when each piece of data is doubled= 4.96

[ Thanks to fieryanswererft ]

Data: {3.9, 2.1, 0.8, 1.5, 4.1}

mean: sum of numbers/total numbers

part A

mean: (3.9+2.1+0.8+1.5+4.1)/5 = 2.48

part B

If all the data's are increased by 5

{8.9, 7.1, 5.8, 6.5, 9.1}

Then mean (8.9+7.1+5.8+6.5+9.1)/5 ⇒ 7.48

part C

If the data is doubled.

{7.8, 4.2, 1.6, 3, 8.2}

Then mean (7.8+4.2+1.6+3+8.2)/5 ⇒ 4.96

Which theorem or postulate proves the
two triangles are similar?
76/5
20
16
19
Not drawn to scale.
SA Postulate
SSS Theorem
AA Postulate
SAS Theorem

Answers

Answer:

AA postulate the two triangles are similar

what is the correct answers NEED ANSWER ASAP​

Answers

f(2)=-x^2+6
X=2
The graph will be upside down like 8 ,
The point one on x +6 and two of the points from x -,+1 , y -,+5 and then y and x -,+2 and for the straight lane there will be three point on them y +2 x,+ 2 , y +1 , x,+2 x 0 , y +2

To find the distance an object has traveled, you use the formula D=RT; where D=distance, R=rate and T=time.


What was the rate a person drove if they traveled 313.5 miles in 6 hours?

A. 52.23 miles per hour
B. 52.25 miles per hour
C. 1,811 miles per hour
D. 18,810 miles per hour

Answers

Answer:

52.25 MPH

Step-by-step explanation:

Using the formula given D=RT we simply plug in values,

313.5=6R

313.5/6=R

52.25=R

I need help
Answers please?

Answers

Answer:

Ethan sold 1/12 gallon more lemonade

Step-by-step explanation:

1 1/4 = 2/3 + x

x is the amount of lemonade Kayla sold

find least common denominator

1 3/12 = 8/12 + x

subtract 8/12 on both sides

15/12 - 8/12 = x

7/12 = x

7/12 = amount of lemonade Kayla sold

2/3 - 7/12 = how much more Ethan sold

8/12 - 7/12 = 1/12 gallon

Make y the subject of the formula [tex]x=a-2by^{2}[/tex]

Answers

Heyo!

RummySokka is here to help!!

Let's do this step-by-step explanation!

: Let's solve for the y.

[tex]x=a-2by^2[/tex]

Step 1: Flip the equation.

[tex]-2by^2+a=x[/tex]

Step 2: Add a- to your both sides.

[tex]-2by^2+a+a-a=x+-a[/tex]

[tex]-2by^2=-a+x[/tex]

Step 3: Divide both sides by -2b.

[tex]\frac{-2by^2}{-2b} =\frac{a+x}{-2b}[/tex]

[tex]y^2=\frac{a-x}{2b}[/tex]

Step 4: Take square root.

[tex]y=\sqrt{\frac{a-x}{2b} }[/tex] [tex]or[/tex] [tex]y-\sqrt{\frac{a-x}{2b} }[/tex]

Answer:

[tex]y=\sqrt{\frac{a-x}{2b} }[/tex] [tex]or[/tex] [tex]y-\sqrt{\frac{a-x}{2b} }[/tex]

Hopefully, this helps you!!

RummySokka~

Math help

44-90+7 divided by 5 =

Answers

Answer:

-7.8 :)

Step-by-step explanation:

first perform 44 minus 90

then add 7 to that

then divide that by 5

Please help me ASAP! 5th grade math. Will give brainliest!

Answers

The first question is B

the second one is c

Q1.

7 ÷ 8 = 7/8

1 ÷ 8 = 1/8 Answer

8 ÷ 7 = 8/7

1 ÷ 8 = 1/8

Q2.

5 ÷ 6 = 5/6

6 ÷ 5 = 6/5

1 ÷ 6 = 1/6 Answer

6 ÷ 1 = 6/1 or 6

Hopefully it Help you out :-)

WILL REWARD BRAINLIEST!!! Please help this is the 4th time posting this!!! Rewarding 50 points!!!!!
m angle R = 120° and m angle S = 100°. Find m angle T. The diagram is not drawn to scale. Quadrilateral R U S T is shown. Side R U is congruent to side R S. Side U T is congruent to Side S T.

A. 20° B. 100° C. 60° D. 40°

Answers

Answer:

Answer choice A

Step-by-step explanation:

because Line ur and rs are equal and lines UT and TS are equal

PLS HELP I GIVE 28 POINTS THIS IS REAL QUESTION!!!

Answers

Answer:

173%

Step-by-step explanation:

So, if one big square represents one whole it means each small square represents 1% as there are 100 of them in each large square.

The first square is completely shaded (100%) and the second square has 73 squares shaded (73%), so 100 + 73= 173%

Hope this helped! :)

Answer:

[tex]86.5 \ \%[/tex]

Step-by-step explanation :

the shaded area consists of 173 squares

The total area consists of 200 squares

THen the shaded area represents :

[tex](\frac{173}{200} \times 100) \ \% = 86.5 \ \%[/tex]

:

What is the range of f(x) = (three-fourths) Superscript x – 4?

{y | y > –4}
Left-brace y vertical line y greater-than three-fourths right-brace
{y | y < –4}
Left-brace y vertical line y less-than three-fourths right-brace

Answers

Using exponential function concepts, it is found that the range of f(x) is given by:

{y | y > –4}

What is the range of an exponential function?

An exponential function is defined by:

[tex]y = ab^x + k[/tex]

The value of k is the asymptote of the function, hence the range is {y|y>k}.

In this problem, the function is given by:

[tex]f(x) = \left(\frac{3}{4}\right)^x - 4[/tex]

Hence k = -4 and the range is {y | y > –4}.

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Answer:

the answer is A

Step-by-step explanation:

i got it right on edge 2022

find the measure of angle b

NO LINKS

Answers

Answer:

[tex]39^{\circ} + b= 180^{\circ} (linear \: pair)\\b= 180 - 39\\\boxed{b = 141^{\circ}}[/tex]

The cone and cylinder above have the same radius, r, and height, h. The volume of the cone is 90 cubic centimeters.

What is the volume of the cylinder?

Answers

Answer:

[tex]\huge\boxed{\sf Volume\ of\ cylinder = 270\ cm^3}[/tex]

Step-by-step explanation:

Volume of cone = 90 cm³

Volume of cylinder = ?

Always remember:

Volume of cylinder = 3 × volume of cone

Volume of cylinder = 3 × 90

Volume of cylinder = 270 cm³

[tex]\rule[225]{225}{2}[/tex]

Simplify Each Radical Expression. Leave in radical form. (Do not use decimals.)

2[√(5)] + 3[√(20)]

Answers

[tex]2\sqrt 5 + 3 \sqrt{20}\\\\\\=2\sqrt 5 + 3 \sqrt{4 \times 5}\\\\\\=2\sqrt 5+ 3\cdot 2 \sqrt 5\\\\\\=2\sqrt 5 + 6 \sqrt 5\\\\\\=8\sqrt 5[/tex]

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