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

Identify the terms, variables, coefficients and constant..

Expression: 7+5c-2k-15

Terms:

Variables:

Coefficients:

Constants:

Answers

Answer:

Terms: 7, 5c, 2k, 15

Variables: C, K

Co efficients: 5, 2

Constants: 7, 15

Need help ASAP
Thankss + BRAINLIST only for correct answer

Answers

Answer:

(2,0)

Step-by-step explanation:

2x-y=4

Substitute x with 2, and y with 0.

2(2)-0=4

2 multiplied to 2 is 4, then subtracted to 0 would be 4, thus it is correct.

3x-y=6

Substitute x with 2, and y with 0.

3(2)-0=6

3 multiplied to 2 is 6, then 6 subtracted with 0 is 6, thus it is correct.

Help meeeeeeeeeeeeeeeee

Answers

Answer:

c

Step-by-step explanation:

there are 8 parts and 4 of them are red= 4/8

which simplifies to 1/2

Find the y-intercept of the line on the graph.
Enter the correct answer

HELP PLEASE!!! i’ll give brianliest

Answers

Just figure it out lol

Answer:

(0,4)

Step-by-step explanation:The y intercept is where the line passes through the y-axis.

In the triangle below, ∠Q is a right angle. Which ratio would be equivalent to the ratio of sin∠R?
a) cos∠Q
b) cos∠S
c) sin∠Q
d) sin∠S

Answers

Answer:

b) cos∠S

Step-by-step explanation:

sin ∠R = SQ/SR

This is same as:

cos S

Correct option is b)

cos<Q

Lets do

[tex]\\ \sf\longmapsto sin<R=\dfrac{P}{H}[/tex]

[tex]\\ \sf\longmapsto sin<R=\dfrac{SQ}{SR}[/tex]

Now

[tex]\\ \sf\longmapsto cos<Q=\dfrac{B}{H}[/tex]

[tex]\\ \sf\longmapsto cos<Q=\dfrac{SQ}{SR}[/tex]

B is the midpoint of AC, AB = 3x + 7, and BC = 2x + 10. Find AB, BC, and AC.

PLEASE HELP

Answers

Answer:

Step-by-step explanation:

The Are the two Angles that are non-adjacent to the specified exteriors angle

Answers

The remote interior angles of a triangle are the two angles that are non-adjacent to the specified exterior angle.

In the zoo, there are 12 elephants, 8 giraffes, 9 lions, 10 seals, and 16 otters.

What is the ratio of elephants to all the animals at the zoo?

Answers

Answer:

16/55

Step-by-step explanation:

If you add all the animals together then put it in fraction form you have 16/55

THE ANSWER SHOULD BE 12:55

Rotation 180° counterclockwise around the origin of the point (4, -1)

Answers

(-4,1) is the answer

Answer:

(-4, 1).

Step-by-step explanation:

For 180 counter clockwise rotation  (x, y) ------> ( -x, -y)

So ( 4, - 1) -------> (-4, 1)

Write an equation in slope intercept form for the graph of the line.

Answers

y = 2x - 3

Hope this helps!!!!!

Find FE (image Below)

Answers

Answer:

FE= 20

Step-by-step explanation:

…......................

SAS

FE = 20

Step-by-step explanation:

GD = FE

3x + 5 = 4x

5 = 4x - 3x

5 = x

so, FE = 4x

= 4 × 5

= 20

whats A-84=747 in its simplest form

Answers

Answer:

A=747+84=831

Step-by-step explanation:

Plus 84 at both side

Answer: A=831

Step-by-step explanation: Hope this helps have a nice day! -Lily ^-^

How many centimeters are equal to 5 inches?
Remember, 2.54 cm = 1 in. Do not include units in
your answer.

Answers

Answer:

12.7 is your answer

5 x 2.54 = 12.7

in a search engine, 40,000 searches are done every minute.
How many searches are done in an hour?
write your answer in standard index form

Answers

Answer:

2400000 in a hour

Step-by-step explanation:

40,000 × 60 = 2400000 you need to multiple 40,000 with 60 because there is 60 minutes in a hour

What is the product ([tex](7\sqrt{8} +3\sqrt{12} )(7\sqrt{8} -3\sqrt{12})[/tex]?

Answers

the product should be 284.

There is a bag filled with 4 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 2 blues?

Answers

4/9 (4 out of 9) because you add them all together then count the number of blue marbles then since you put back the first marble, the dominator is still the same

Frances can complete 919191 oil changes in 777 days.
How many oil changes can Frances complete in 111111 days?
show your work or not

Answers

Answer:

Frances will complete 131,444,313 oil changes.

Step-by-step explanation:

919191 oil changes=777days

         ?                     =111111 days

=(919191*111111)/777

=131,444,313 oil changes

X/5+ 7 = y Solve for x
pls hurry

Answers

Answer:

x=5y-35

Step-by-step explanation:

Write the equation of
the circle with diameter
endpoints of (17,-3) and
(-13, 3).

Answers

The equation of the described circle is:

(x - 2)² + y² = 234

How to write the circle equation?

Remember that the equation for a circle whose center is (a, b) and has a radius R, is:

(x - a)² + (y - b)² = R²

Here the endpoints of the diameter are (17,-3) and (-13, 3), then the center is at:

( [17 - 13]/2, (-3 + 3)/2)

(2, 0)

And the radius is the distance between the center and any of these points:

R = √( (2 - 17)² + (0 + 3)²)

R = √234

Then the equation is:

(x - 2)² + (y - 0)² = √234²

(x - 2)² + y² = 234

LEarn more about circles at:

https://brainly.com/question/1559324

#SPJ1

A football team carried out a report to see the impact of stretching on preventing injury. Of the 60 footballers in the squad 48 stretch regularly. Of those who stretch, 8 got injured last year. There was a total of 17 injured players last year.
The results can be presented in a frequency tree. What fraction of players who do stretch get injured?

Answers

Answer:

1 in every 6 players 1/6

8/48=1/6

can someone help me with this please, i am not sure what to do

Answers

Answer:

I attached the graph below

Step-by-step explanation:

I started at the y-intercept, because it is where the line crosses the y-axis.  Then, I used rise/run for the slope (-5/3) and went down 5 units and right 3 units.  I connected the points to make the graph.  

Choose 3 answers
A. Obtuse triangle
B. Isosceles triangle
C. Acute triangle
D. Scalene triangle
E. Right triangle
F. Equilateral triangle
Help !

Answers

Answer:

C:Acute traingle

Acute traingle

I know this triangle is equilateral and acute, but I'm not sure what the third choice would be.

10) What is the area of the figure below? Round your answer to the nearest tenth (1 place
value) if needed.

Answers

Answer:

Step-by-step explanation:

Divide the figure into a rectangle and a triangle.

area of rectangle = 5×10 = 50 square units

area of triangle = 0.5×5×10 = 25 square units

total area = 50+25 = 75 square units

answer this question​

Answers

Answer:

(0,8)

Step-by-step explanation:

Q is located at point (0,8) on the graph

There are 120 Calories in a 34-cup serving of cereal. How many Calories are there in 6 cups of cereal?

Answers

Answer:

960 calories

Step-by-step explanation:

Answer:

there are 960 calories in 6 cups of cereal.

Step-by-step explanation:

Zach paid $56.50 including sales tax for a book priced at $45. What was the sales tax rate?

Answers

Answer:

25.56% or $11.50

Step-by-step explanation:

I took it and put it in a sales tax calc.

A leaf fell into a river and traveled 140 meters in 4 minutes
How many meters did the leaf travel per minute?

Answers

Answer:

35 meters per minute

Step-by-step explanation:

140 meters/4 minutes = 35 meters/minute

Answer:

35 meters per minute

Step-by-step explanation:

140÷4=35

35 meters per minute

x-5= -4
what is the answer for x?

Answers

Answer:

x = 1

Step-by-step explanation:

by solving the equation we get ;

x -5 = -4x = -4 + 5x = 1

Step-by-step explanation:

x = 1

hope it helps

Be happy and make happy

help me pls
help me pls
help me pls
help me pls

Answers

Answer:

The correct answer is 12

Answer:

the answetr is 3.5

Step-by-step explanation:

A music collection includes 19 ROCK CDs, 12 COUNTRY CDs, 6 CLASSICAL CDs, and 5 HIP HOP
CDs. What is the probability that a CD randomly selected from the collection IS NOT a classical
CD?(answer as simplified fraction)

Answers

Answer:

the answer is 6/7.

you're welcome.

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