A rectangle has one side that measures 3x + 1 and another that measures 4y + 3. Keith says that the perimeter of the rectangle is 3x + 4y + 4. What is Keith's mistake and what is the correct perimeter of the rectangle?

Answers

Answer 1

Answer:

he added the dimensions of the rectangle. He used the wrong formula. the formula he used was length + breadth. He should have multiplied by 2

6x + 8y +8

Step-by-step explanation:

Perimeter of a rectangle = 2 x (L + B)

L = length

b = breadth

2 (3x + 4y + 4. ) = 6x + 8y +8


Related Questions

Divide 200kg in the ratio 15:9:1

Answers

Answer:

120kg, 72kg and 8kg

Step-by-step explanation:

Given the ratios 15:9:1

total ratio = 15+9+1 = 25

For the ratio of 15

Share = 15/25 * 200

Share = 3000/25

Share = 120kg

For the ratio of 9

Share = 9/25 * 200

Share = 1800/25

Share = 72kg

For the ratio of 1

Share = 1/25 * 200

Share = 200/25

Share = 8kg

Find mZWZY.
W
x
(8x - 1)º
(5x + 11)°
Z

Answers

Answer:

08.262=)))55668(4738dfrj

What is the value of the expression?
2 x[(-6 + 4) X (5 + 9) - 3]

Answers

Answer:

- 62

Step-by-step explanation:

Calculate the sums within the brackets first and then multiplication, as stated by the BOMDAS rule.

B = Brackets

O = ?

M = Multiplication

D = Division

A = Addition

S = Substitution

(- 6 + 4) = -2

(5 + 9) = 14

- 2 × 14 = -28

- 28 - 3 = - 31

2 × - 31 = - 62

Disclaimer: I am not sure if one of the x's is used as a variable or not

A rectangular flower garden has a length that is 3-feet greater than its width. If the flower garden is surrounded by a 1 foot wide concrete path, write a quadratic equation that represents this situation.

Answers

Eyeusjjesisisisiisisiisiis ok I don’t know lol

Parallel/perpendicular definition

Answers

Answer:

Parallel: extending in the same direction, everywhere equidistant.

Perpendicular: ar an angle of 90 to a givin line, plane or surface.

Answer:

Two or more straight lines having equal distance between them through out is parallel lines

Perpendicular lines are two lines at Right angles

The ratio of men to women in the astronomy club is 3 to 2. The club has
60 members. How many club members are women?

Answers

Answer:24

Step-by-step explanation:

If 6 is multiplied by the sum of a number and 5, the result is 30. Which equation could be used to find the value of the number?

Answers

Answer:

5x6

Step-by-step explanation:

5x6

5 groups of 6

=30

There are 8 teams playing in the tournament. Each team is scheduled to play every other team once. How many games will be played during the tournament?


A. 15

B. 21

C. 28

D. 36

Plz help me! who ansers this good I will giv 50 points!!!! I will vote you brainlest

Answers

The answer is 36 because all 8 teams play 4 games each.

Answer:

36 i did the quiz!

-9x = 10 - 2y
-48 = 4x+10y

Answers

Answer:

x=−2 and y=−4

Step-by-step explanation:

I will solve your system by substitution.

(Add -4x to both sides)

(Add 48 to both sides)

(Divide both sides by -4)

(Simplify both sides of the equation)

(Add 2y to both sides)

(Add -108 to both sides)

(Divide both sides by 49/2)

(Simplify both sides of the equation)

Answer:

x=−2 and y=−4

I hope this helps :)

The answer is x= -2 and y= -4 have a nice day:)

heyy could you help me out with this problem???​

Answers

Answer:

C

Step-by-step explanation:

Because of all the variables in the side lengths, we don't have enough information to use side-angle-side similarity.

We do have two angles of one triangle congruent to two corresponding angles of the other triangle, so we can use angle-angle similarity.

Sides AE and AD are corresponding sides. Sides AC and AB are corresponding.

Answer: C

Find the value of y.

Answers

Answer:

y=27

Step-by-step explanation:

3y+53=7y-55

step 1 add 55 to each side

3y+108=7y

step 2 subtract 3y from each side

108=4y

step 3 divide each side by 4

y=27

Please help and please I need help:)

Answers

Answer:

16 eighteenths

Step-by-step explanation:

Answer:

16 eighteens fit into [tex]\frac{8}{9}[/tex]

Step-by-step explanation:

in order to find out how much eighteenths are the in [tex]\frac{8}{9}[/tex]. we just have to divide [tex]\frac{8}{9}[/tex] by [tex]\frac{1}{18}[/tex]. So we get...

[tex](\frac{8}{9}) /(\frac{1}{18}) = (\frac{8}{9})(18) = \frac{144}{9} = 16[/tex]

Noah and Lin are making paper cones to hold popcorn to hand out at parent math night. They want the cones to hold 9 cubic inches of popcorn. What are two different possible values for height h and radius r for the cones?

height (h)=

radius (r)=

Answers

Answer:

So, The possible values of h and r are

1. r = 3 , h = 3

2. r = 1, h = 27

3. r = 2, h = 6.75

Step-by-step explanation:

P.S - The exact ques is -

As we know that Volume of cone , V = [tex]\frac{1}{3}\pi r^{2}h[/tex]

As given,

V = [tex]9\pi[/tex]

⇒[tex]\frac{1}{3}\pi r^{2}h = 9\pi \\ \frac{1}{3} r^{2}h = 9 \\r^{2}h = 27[/tex]

So,

The possible values of h and r are

1. r = 3 , h = 3

2. r = 1, h = 27

3. r = 2, h = 6.75

In Case I-

When r = 3, h = 3

(3)² ×3 = 9×3 = 27

Satisfied

Case II-

r = 1, h = 27

(1)²×27 = 1×27 = 27

Satisfied

Case III-

r = 2, h = 6.75

(2)²×6.75 = 4×6.75 = 27

Satisfied

If the radius of the base of the cone is 2 inches then the height of the cone should be 2.1485 inches.

What is the volume of the cone?

The volume of the cone is the volume occupied by the cone. It is given by the formula,

[tex]\text{Volume of the cone}= \dfrac{1}{3} \pi r^2h[/tex]

where r is the radius of the base, and h is the height of the cone.


Now, as it is given that cones need to hold 9 cubic inches of popcorn. therefore, the volume of the cone can be written as,

[tex]\text{Volume of the cone}= \dfrac{1}{3} \pi r^2h\\\\9 \times 3 = \pi r^2h\\\\\dfrac{9 \times 3}{\pi}=r^2 h\\\\8.5943 = r^2 h[/tex]

Thus, the product of the square of the radius and the height of the cone should be such that the result is 8.5943.

Now, let the radius of the cone be 2 inches, therefore, the height of the cone is,

[tex]8.5943 = r^2 h\\\\8.5943 = (2^2) h\\\\h = 2.1485\rm\ in[/tex]

Hence, if the radius of the base of the cone is 2 inches then the height of the cone should be 2.1485 inches.

Learn more about the volume of the cone:

https://brainly.com/question/1315822

12y - 4 = 168
What is y? Use inverse operation

Answers

Answer:

y=14.33

Step-by-step explanation:

Add 4 to both sides you should get 12y=172Now, divide both sides by 12 and you should get y=14.33

Answer:

the answer is 14.33

Step-by-step explanation:

first you do 12y-4=168

                        +4=+4

                         ---------

                         0=172

so now the eqation is 12y=172

then you divide 172/12=14.33

(7th grade math question)

Sales of the Xbox One increased from 10,000 to 18,500 in November. What was the percent increase?

A) 8.5%
B) 45.9%
C) 85%
D) 85.8%

please answer soon​

Answers

C is the answer hope it’s correct

Answer:

C) 85%

Step-by-step explanation:

i hope this is right ^w^

One field that a farmer uses for his crops is 115 yards long and 50 yards wide. How long is the diagonal of the field to the nearest tenth of a yard?
A. 125.4 yards
B. 165 yards
C. 290.4 yards
D. 65 yards

Answers

Answer:

A)  125.4 yards

Step-by-step explanation:

the diagonal would represent the hypotenuse of a right triangle with legs equal to 115 and 50

115² + 50² = c²

c² = [tex]\sqrt{15725}[/tex] which is approx 125.4

2.25(p − 10) − 11 = 2.5
solve for p

Answers

Answer:

p=16

Step-by-step explanation:

Find the solution to the system by graphing

Answers

Answer:

y = -3x + 1 (Red line)

y = x - 7 (Blue line)

Gloria sells skateboards and charges a $15 shipping fee for each skateboard. She sold 14 skateboards last week and charged a total of $938. If Gloria charges the same amount for each skateboard, how much does she charge for one skateboard?

Answers

Answer:

She charges 52$

Step-by-step explanation:

The answer would be $52

Help pleaseeee IM TIMEDDDDD

Answers

Answer:

D.

Step-by-step explanation:

Line D. shows the numbers less than 4. Trust me on this.

♡ ∩_∩

(„• ֊ •„)♡

┏━∪∪━━━━┓

♡ good luck 。 ♡

┗━━━━━━━┛

Magazine ask readers to call in their opinion regarding the amount of advertising in present issue what sampling is it

Answers

Answer:

Convenience

Step-by-step explanation:

The convenience sampling method is defined as the non probability sampling method in the sample of the survey is taken from such a group that is easy to reach or contact. Here the sample is taken from the people that are close to hand. It is useful for the pilot testing.

In the context, the magazine publishers asks the sample of people to call and inform about their views on the amount of the advertisements in the present issues. The sample taken will be easy to reach and easy to contact. This type of sampling taken is called the convenience sampling.

A hot air balloon travels at a constant rate of 3 miles per hour. If the balloon traveled a total of 72 miles, how many hours would it take?

IF answered right i will give brainiest plsssssssssssssss help

Answers

[tex]\huge{\underline{\mathtt{\red{A}\pink{N} \green{S}\blue{W} \purple{E}\orange{R}}}}[/tex]

give I'd and pass.....

Which function has a greater rate of change? Function A: x 1.5 2.5 3.5 4.5 5.5 y 5 0 –5 –10 –15 Function B: y = –4.5x + 15 Function A has a rate of change of –5 and Function B has a rate of change of –4.5, so Function A has a greater rate of change. Function A has a rate of change of 5 and Function B has a rate of change of 4.5, so Function A has a greater rate of change. Function A has a rate of change of 5 and Function B has a rate of change of 4.5, so Function B has a greater rate of change. Function A has a rate of change of –5 and Function B has a rate of change of –4.5, so Function B has a greater rate of

Answers

Answer:

Function A has a rate of change of -5 and Function B has a rate of change of -4.5, so Function B has a greater rate of

Step-by-step explanation:

Function A:

[tex]\begin{array}{cccccc}x & {1.5} & {2.5} & {3.5} & {4.5} & {5.5} \ \\ y & {5} & {0} & {-5} & {-10} & {-15} \ \end{array}[/tex]

Function B:

[tex]y = -4.5x + 15[/tex]

Required

Which has a greater rate of change

The rate of change of function A is calculated as thus:

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Where:

[tex](x_1,y_1) = (1.5,5)[/tex]

[tex](x_2,y_2) = (2.5,0)[/tex]

So, we have:

[tex]m = \frac{0-5}{2.5 - 1.5}[/tex]

[tex]m = \frac{-5}{1}[/tex]

[tex]m = -5[/tex]

For function B

The general function is:

[tex]y = mx + b[/tex]

Where

m is the rate of change

By comparing [tex]y = mx + b[/tex] to [tex]y = -4.5x + 15[/tex]

[tex]m = -4.5[/tex]

So, we have that:

Function A has a rate of -5; function B has a rate of -4.5.

By comparison: -4.5 is greater than 5

Hence, function B has a greater rate.

Answer these two to get 20 points!!

Answers

25 and 28
Hope this helps!!!

HI PLSS HELP THIS IS DUE IN 15 MINS AND PLS SHOW WORK TYY

find all the missing angles

Answers

Answer:

its #####

Step-by-step explanation:

first you have to##### and then you pls give me points because a need help with some stuff

y= 43
x= 137
z= 137
hope this helped

Describe the lines in the figure below identify the figure

Answers

Answer:

The lines are congruent, the figure is a parallelogram.

Answer:

The figure shown is a parallelogram.

The lines on the sides are parallel

And the line on the top and the line on the bottom are parallel

Step-by-step explanation:

Help!!! Please help me I need help on my homework!​

Answers

Answer:

Using the law of indices

5 X 5^-3

5^1-3

5^-2

What is the result of converting 14 inches into centime
ters? ​

Answers

Answer:

35.56cm

Step-by-step explanation:

convert 14 inches to cm

Its 35.56 centimeters long, since in 1 inch there are 2.54 centimeters, so 2.54x14=35.56, and yeah :))

|The angles in a triangle are in the ratio 1:1:4
|(a) Find the size of the largest angle?
b) what type of triangle is it?

Answers

Since the internal angle sum of a triangle is 180 degrees, and the angles are in ratio if 1:1:4, the angles with that's corresponding to the 1 will have value of 180/6=30 degrees.

The largest angle will have value 30*4=120 degrees.

This is an obtuse triangle because largest angle>90 degrees.

How do you make someone's comment the brainiest answer

Answers

Tbh idek i waiting for someone else to answer this question

Answer:

Nice.......It helped me out

LOL

Step-by-step explanation:

Other Questions
please help me on this for brainliest and a brownie is this exponential growth or decay y=6e^-x covalent compounds contain What do the New Jersey Devils (NHL) and Colorado Rockies (MLB) have in common in hooky? I will give brainliest five stars and thank you please help! List two quotes from the text of the judicial oath that represent how judges promise to rule. What is it called when two or more atoms are chemically bonded together?a.Electronb.Two atomsc.Moleculed.Material 2(3x+4) - 2x = 24I need help rq on this problem I need to solve it How did the CPS effect Nonpartisan League Jackie earns 14% commission as a salesperson. She sold a sofa that costs $870. How much commission did Jackie earn? which expression is equivalent to z+(z+6)? Which pairing is correct? Put these fractions in order of size complete the square to form a perfect square trinomial. HelpppppppppppIn a recent political ad, Senator Bob Smith stated, "Like our forefathers, I support smaller government. Too much government leads to less freedom for Americans. As president, I would curb the reach of the federal government."Which action would most directly help voters in evaluating these statements? a. Analyze Bob Smith's qualifications to see if he is an expert on constitutional rights.b. Decide whether Bob Smith seems trustworthy based on news interviews.c. Listen to reporters' opinions on the claims that Bob Smith makes about the founders of the country.d. Review Bob Smith's voting record on issues related to increasing government programs and regulations. Jose spent $19 on a hair cut and left a $20 tip. What was the amount he left for the tip? Find the slope of the line that passes through the given point (-2, -4) and (-11, -7) List some benefits of Cardiovascular exercise: What are four things Stuart reveals about his personality through some actions, thoughts, or speech? Choose >, su responsabilidad de los diputados con la siudanania es