The students in Mr. Nolan's class are writing expressions for the perimeter of a rectangle of side length & and width w.
After they share their answers, the following expressions are on the board:
Sam: 2(l+ w)
Joanna: l+w+l+w
Kiyo: 2l+ w
Erica: 2w + 2l

Which of the expressions are correct and how might the students have been thinking about finding the
perimeter of the rectangle?

Answers

Answer 1
Sam and Erica are correct because if you multiply you l and w by two you would get the perimeter and also you can do the value of one w and multiply it by two and also the L hope it helps

Related Questions

PLEASEEE HELP ME

A cylinder-shaped container is used to store water. The container has a height of 6 feet and a diameter of 3 feet. about how much water is in the container when it is 3/4 full?

PLEASE ILL MARK BRAINLIST

Answers

Volume of a cylinder is V=pi r^2h =42.41
3/4 *42.41=31.81ft

4 1/3 x 6
2 3/5 x 3 1/3
Can you help me? (✿◡‿◡)

Answers

Answer:

26

8 2/3

Step-by-step explanation:

4 1/3 ×6

13/3×6

13/1×2=26

2 3/5 × 3 1/3

13/5 × 10/3

13/1 × 2/3

26/3=8 2/3

What is the place value of the 6 in the number 8405.236?

Answers

Answer:

6 thousandths

Step-by-step explanation:

the 2 is tenths the 3 is hundreths and the 6 is thousandths

Answer:

The 6 is in the thousands place.

A diagram from a proof of the
Pythagorean Theorem is shown. Which
statement would NOT be used in the
proof?

Answers

Answer:

The answer is the forth one, you suppose Sabi am

Solve the equation -3k+6=15

Answers

Answer:

K= -3

Step-by-step explanation:

-3k+6=15

     -6   -6

-3k=9

/-3  /-3

k=-3

subtract 6 from both sides.

divide each side by -3 to get K alone

-3 is your answer.

At 5:00 a.m., the temperature outside was 6°F below zero. By 12:00p.m., it rose by 9°F. At 7:00 p.m., the temperature
dropped by 5°F. What was the evening temperature?
A. -20°F
B. 8°F
C. 20°F
D. -2°F

Answers

Answer:

-2 degrees Fahrenheit

Step-by-step explanation:

math also I'm asian

Shirley bought 20.8 pounds of bird seed at a bargain store. She wants to fill her feeder 100 times
with anequal amount. How much seed should she put in the feeder each time?

Answers

Answer:

0.208

Step-by-step explanation:

Hope this helps....

Answer:

0.208

Step-by-step explanation:

What is the recursive rule for the sequence −3, −1, 1, 3...?

Answers

Answer:

+2

Step-by-step explanation:

-3 + 2 = -1

-1 + 2 = 1

1 + 2 = 3

Answer:

[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + 2

Step-by-step explanation:

There is a common difference d between consecutive terms, that is

d = - 1 - (- 3) = 1 - (- 1) = 3 - 1 = 2

A recursive rule allows a term in the sequence to be found by adding d to the previous term, that is

[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + 2

Unknown angle problems ( with algebra ) solve for x in the diagram below

Answers

Answer:

5x+35=90

5x. =90-35

5x =55

X=11

The value of x from the given figure is 11°.

What is an angle?

An angle is formed when two straight lines or rays meet at a common endpoint. The common point of contact is called the vertex of an angle.

In the figure, the whole angle is 90°, the ray divide the angle into two angles such as 35° and 5x°.

From the given figure, we have

35°+5x°=90°

5x°=90°-35°

5x°=55°

x°=11°

Therefore, the value of x is 11°.

To learn more about an angle visit:

https://brainly.com/question/9811089.

#SPJ2

Write and expression that could determine the area of the rectangular field.

Determine the length and width of the field rounded to the nearest tenth if the area is 300 ft2.

Answers

Answer:

to find the area of a rectangle multiple the length by the with the formula is 8 = LW where a is the area l is the length w is the width and* means multiple

will mark brainliest please help

Answers

Answer:

445

Step-by-step explanation:

What is the solution to this equation? 2 x + 10 = 28

Answers

Answer:

x=9

Step-by-step explanation:

X=9 10-10 28-10 2x=18 18/2= 9

Jasmine made a scale drawing of an office. The scale of the drawing was 4 inches: 3 feet. The desk is 8 inches long in the drawing. How long is the actual desk?

Answers

Answer:its 6 feet

Step-by-step explanation:

Connor has five nickels in one hand and some dimes in his other hand. He has more than two times as many dimes as nickels. He has fewer than three times as many dimes as nickels.

Answers

Complete question :

How many dimes might he have?

How many coins would he have altogether?

Answer:

11, 12, 13, 14 ;

16, 17, 18, 19

Step-by-step explanation:

Let :

Nickel = n

Dimes = d

Total number of nickels = 5

He has more than 2 times as many dimes as nickels ;

d > 2n

d > 2*5 ; d > 10

He has fewer than 3 times as many dimes as nickels;

d < 3n

d < 3*5 ; d < 15

Meaning he has more than 10 dimes but less than 15.

10 < d < 15

So, d could be ;

11, 12, 13, 14

Number of coins altogether :

11 + 5 = 16

12 + 5 = 17

13 + 5 = 18

14 + 5 = 19

2x - y + 4z + 1

1. how many terms are there in the algebraic expression?

2. what is the coefficient of y?

3. what are the variables in the algebraic expression?

4. what os the constant?

Answers

Answer:

1. There are 4 terms

2. I think it is 1

3. The variables is x and y

4. The constant is 1

Someone please help me with this question I need the answer plsss

Answers

Answer:

6

Step-by-step explanation:

The slope is: [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]. In this case, for the numerator you get 30. For the denominator you get 5. Divide 30/5 to get 6 as your final slope.

Hope it helps!

6 plz brainpower!!! I did the test

Which is the BEST system to measure the likelihood of an event occurring? A between 0 and 12 B between 0 and 1 C between 0 and 10
D between 0 and 100

HURRRRYYYYYY 50 POINTS

Answers

Answer:

A BETWEEN 0 AND 12 B BETWEEN 0 AND 1 C BETWEEN 0 AND 10 C BETWEEN 0 AND 100

Step-by-step explanation:

the number of squirrels in a park at the end of the month

Answers

Using the given recursive function, we have that:

a) There will be 132 squirrels in the park at the end of August.

b) As time goes by, the number of squirrels in the park will increase.

What is the recursive function for this problem?


The recursive function for this problem models the number of squirrels in the park at the end of month n+1, considering the amount present at the end of month n, as follows:

[tex]S_{n+1} = 1.6S_n - 30[/tex]

For this problem, we have that at the amount at the end of May is of 70, hence:

[tex]S_{5} = 70[/tex]

Hence, we find the amounts at the end of June, July and August, as follows:

[tex]S_6 = 1.6(70) - 30 = 82[/tex].[tex]S_7 = 1.6(82) - 30 = 101[/tex].[tex]S_8 = 1.6(101) - 30 = 132[/tex].

Hence:

a) There will be 132 squirrels in the park at the end of August.

b) As time goes by, the number of squirrels in the park will increase.

More can be learned about recursive functions at https://brainly.com/question/489759

#SPJ1

I need help please!!!

Answers

Answer:

Image is all black, cant help ya!

Step-by-step explanation:

I believe it is 5x-7+ jkjksorry

For every 2 cups of sugar in the cookie recipe, there are 5 cups of flour.
What is the ratio of cups of flour to cups of sugar?​

Answers

Answer:

2:5

Step-by-step explanation:

Yo 10 or 22 points pls help I rlly need help !!!

Answers

3x < -21
x < -7
And then shade to the left 7 places.

Mr. Nguyen bought a package of 4 chicken legs and a package of 6 chicken wings. Ms. Dawen bought a package of 3 chicken legs and a package of 6 chicken wings. Mr. Nguyen bought 52 ounces of chicken. Ms. Dawen bought 45 ounces of chicken. How much did each chicken leg and each chicken wing weigh?

Answers

Answer:

weight of legs - 7 ounces

weight of wings - 4 ounces

Step-by-step explanation:

Let the weight of a chicken leg be represented by l

Let the weight of a chicken wing be represented by w

The total weight of Mr. Nguyen's package can be represented by this equation :

4l + 6w = 52

The total weight of Ms. Dawen's package can be represented by this equation :

3l + 6w = 45

To find the weight of the legs and wing, use simultaneous equation

4l + 6w = 52 eqn 1

3l + 6w = 45 eqn 2

Subtract equation 2 from 1

l = 7 ounces

Substitute for l in equation 1

4(7) + 6w = 52

28 + 6w = 52

Solve for w

w = 4 ounces

The discriminant of a quadratic equation is the value b^2-4ac what is the value of discriminant of 0=-2x^2+6x+13

Answers

Answer:

-16

Step-by-step explanation:

Given data

We are given the expression

0=-2x^2+6x+13

a=-1

b=6

c=13

The discriminant of a quadratic equation is the value b^2-4ac

Substitute

=6^2-4(-1*13)

=36-4(13)

=36-52

=-16

Hence the discriminant is -16

Can Someone help me with this work

Answers

Answer:

Oar City is cheaper

Step-by-step explanation:

27/3=9 (Boat Bunker)

45/9=5 (Oar City)

$4 Cheaper than Boat Bunker

Brainlist?

Answer: Oar City is the answer.

Step-by-step explanation:

Use the distributive property of multiplication to evaluate 2(3 – 1). Show your work in your answer.

Answers

Answer:

12

Step-by-step explanation:

2(3 - 1)

multiply each number inside the brackets by 2:

2(3 -1)

18 - 6

solve:

18 - 6

= 12

the y-intercept is the y -value of the point at which the graph of a function crosses the y-axis True or False​

Answers

Answer:

True

Step-by-step explanation:

The y intercept is where the line "crosses through" or "goes through" the y axis.

Find the slope of the line through the points (-3,1) and (-1,5).

Answers

Answer:

The slope is 2

Step-by-step explanation:

(-3,1)

+2 ——> (-1,5) <—— +4

m = y/x —> 4/2 —> 2

m = 2

Answer:

[tex]\boxed {\boxed {\sf m=2}}[/tex]

Step-by-step explanation:

The formula for slope is:

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

where (x₁, y₁) and (x₂, y₂) are the points on the line.

We are given the points (-3,1) and (-1,5). Therefore,

[tex]x_1= -3 \\y_1= 1 \\x_2= -1 \\y_2=5[/tex]

Substitute the values into the formula.

[tex]m= \frac {5-1}{-1--3}[/tex]

Solve the numerator.

[tex]m= \frac{4}{-1--3}[/tex]

Solve the denominator.

-1 --3= -1+3 =2

[tex]m=\frac{4}{2} \\[/tex]

Divide.

[tex]m=2[/tex]

The slope of the line is 2.

anyone know how to do this PLEASE....pic below 20pts..

Answers

Answer:

Option 1 and Option 5

Step-by-step explanation:

Option 1uses distributive property and simplifies.

Option 5 uses distributive property but does not simplify. Still equivalent.

Answer:

The top and the bottom one

Step-by-step explanation:

HELP PLEASE!!!! ONLY ANSWER IF YOU KNOW, WILL GIVE BRAINLIEST!!!!

Answers

Answer:

1.D

2.A

Step-by-step explanation:

Answer:

1.A

2.D

Step-by-step explanation:

Which of the following expresses 12 + 42 by using the GCF of the two numbers?

3(9 + 14)
3(4 + 38)
6(2 + 7)
6(6 + 36)

Answers

the correct answer is 6(2+7)
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