Mathematics Middle School

A rectangle has a length of 2x+7 and a width of 3x+8.

Write and simplify an expression for the perimeter of that rectangle

pls help

Answers

Answer 1

Answer:

2x+7+3x+8=5x+15

A perimeter is a sum of lengths of sides of a lateral.

Answer 2
It would be 5x + 15. This is if you add the 2x and 3x it would be 5x. Then If you did 8 plus 7 is would be 15. The final expression would be 5x + 15

Related Questions

solve the equation to find the missing leg of the right triangle

x2+0.5 squared=1.3 squared

Answers

Answer:

1.2

Step-by-step explanation:

x2 is the missing leg so the formula to find the missing leg to a right triangle is

c squared- b squared=a squared which in this case would be

1.3 ^2 - 0.5^2 = x^2  ( ^ means squared)

1.69 - 0.25 = x^2

[tex]\sqrt{x}[/tex]1.44 = 1.2

1.2 = missing leg

Rafael and his sister bought snacks for movie night.
Rafael got 3 boxed candies and 1 bag of chips for $6.99.
His sister got 2 bags of chips and 1 boxed candy for $5.98.

Find the cost for 1 of each of these items in dollars.

One boxed candy costs $ ?
and one bag of chips costs $?

Answers

Answer:

1. $2.33

2. $2.99

Step-by-step explanation:

$6.99/3  

$5.98/2

Answer:

Each boxed candies are 5.98, and Each bag of chips are 6.99 Sorry if incorrect

Step-by-step explanation:

When -2t + 11t + (5 - 9)t is simplified, what is the coefficient of t?

Answers

-2t+11t+(5-9)t
= 9t+(-4t)
=5t
Therefore, 5
The Answer Is
-2t + 11t +(5-9)t
= 9t + (-4t)
= -5t
So, The Coefficient Is 5
Please Mark As BRAINLiest.

1289 - _____ + 856 = 1289

Answers

856 because it goes back to the number it starts with

-856 because -856+856=0 so you’ll be left with 1289

please go answer my questions posted I will be happy if you do plz

complete this question with a yes if you agree i will heart and rate your answer if you do please and thank you.

Answers

Answer:

yes

Step-by-step explanation:

estimate the quotient mentally
500 divided by 7
1394 divided by 9

Answers

Answer:

500/ 7 = 71

1394/9 = 154

Step-by-step explanation:

since rhe result are in decimals you can just round the number to a while number

500/7 is around 70 because 7 x 70 is 490
1394/9 is around 155 because 9 x 155 is 1395

To work at a certain restaurant, you must be at least 16. What number line shows the graph of this
statement?

Answers

Answer:

A

Step-by-step explanation:

the dot is at 16 and the arwor gose up

graph a shows it cause if it’s asking for “at least” it’s a closed circle and since you have to be either 16 or older arrow point to right

Which relationships describe angles 1 and 2?

Select each correct answer.


adjacent angles

complementary angles

vertical angles

supplementary angles

Answers

Vertical angles hope that helps

angle 1 and 2 are supplementary

A salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of ​$28. Option B is a commission rate of ​8% on weekly sales. How much does he need to sell this week to earn the same amount with the two​ options?

Answers

Answer:

14,000

Step-by-step explanation:

14,000

what is 6354.3 + 2384858 x 23=

Answers

Answer:

54858088.3

Step-by-step explanation:

What is the area of this figure?

Enter your answer in the box.


m²

Answers

I think the answer is 5

Answer:

81 m2

Step-by-step explanation:

i need help.........please help?!?!

Answers

Answer:

1) 66

2) 33

3) 77

4) 100

Step-by-step explanation:

I think The Number 4 is 100

I need help on this
answer choices :

Yes, because two sides are equal.

Yes, because two angles are congruent to two angles of the other triangle.

No, because only one set of angles are congruent.

No, because the sides are not equal.

Answers

Answer:

i think it is A and B sorry i can't choice hope it helped

Step-by-step explanation:

Answer:
I believe the answer is b

Need this answered ASAP !!! Please help :CCC

Answers

Answer:

753.982236862

Step-by-step explanation:

1) Cut Cylinder in half, perpendicular to the circle face. Effectively making a rectangle face. The Pencil diagnolly reaching from the top corner to the bottom corner act like a divider which splits the rectangle into 2 triangles. Which allows for us to use Pythagorem theorem.

pythagorean theorem: [tex]c^2=a^2+b^2}[/tex]

The Pencil is 17cms long. So [tex]17^{2}[/tex]=[tex]{a^2+b^2}[/tex]

the height is 15cms long. So [tex]17^{2}[/tex]=[tex]15^2+b^2}[/tex]

We need to Solve for B, so we will subtract A from C since C is the longest side on the Triangle.

289-225=[tex]\sqrt{64\\}[/tex] = 8

b=8

b is the diameter of the Cylinder

Since we need the Radius squared for Cylinder we divide the Diameter in half. 8/2=4

4X4=16

Next we wil figure out the Volume,

[tex]\pi *4^{2} *15[/tex]=753.982236862

the answer is 753.98

what is the value of x?

Answers

Answer
42

Because that angle is 90 degrees so 90-48-42

A company had 488 customers. Only 50% of the company's customers bought makeup. Only 50% of the customers that bought makeup said that they liked the makeup. Only 50% of the customers that bought and liked the makeup saw the owner of the company with his shirt off.
1. How many customers bought makeup?
2. How many customers said they liked the makeup?
3. How many customers that bought and liked the makeup saw the owner of the company with his shirt off?

Answers

Answer:

1. 244

2. 122

3. 61

Step-by-step explanation:

1. 244 because I divided 488 by 2.

2. Divide 244 by 2.

2. Divide 122 by 2.

1) 244 2) 122 3) 61
Multiply the original amount by 50% for 1.
Multiply that amount by 50% for 2. Multiply that amount y 50% for 3.
Hope this helps!!

How many 1/2 cubes could fill a 8 1/2 cm , 11 c, 2 3/4 cm box? Please provide an explanation.

Answers

1. 1/2 is a half of 1 so, 2 X 1/2 X 4 = 2 so, 1/2 X 8 = 4 so, 8 X 2 = 16 so, 1/2 X 16 = 8 + 1/2 will be, 17 cubes make up 8 1/2 cm cubes.

You’re welcome:)

1b. $1/6​−1/3​
Lin said the value of this expression is $1/6​. Is she correct? Explain or show your reasoning to prove your answer
PLS ANSWER CORRECTLY

Answers

Answer:

She is incorect because  you can't subtract a number from a number and not have the first number change (unless you are subtracting 0) the is really -1/6.

She is incorrect since she cannot subtract those two fractions without changing the denominator

Please help! I need to tell whether x and y are in a proportional relationship and I need to write an equation that represents the relationship if it’s proportional.

Answers

Step-by-step explanation:

dd

The answer is proportional

PLZ HELP WILL GIVE BRAINS :)

Answers

Answer: 36.4 miles per gallon!

Step-by-step explanation: To get your answer....divide the y (miles driven) by x (gallons used). Each divided gives you the answer of 36.4 which is the constant of proportionality between the number of miles driven and the number of gallons used.

For example: 691.6 divided by 19= 36.4

                       1528.8 divided by 42=36.4

                        1638 divided by 45=36.4

 

cannnnnnnnnnnnnnnnnnnnn some one answer this plz

Answers

Answer:

i'm not good with word questions sorry :(

Step-by-step explanation:

Answer:

5.00

Step-by-step explanation:

SELECT ALL the expressions that are equivalent to -2(4 - 3x) + (5x - 2)


A.) 2x - 10

B.)11x - 10

C.)-8 + 11x - 2

D.)-8 - 11x - 2

E.) -8 + 6x + 5x - 2

F.)-8 - 3x + 5x - 2

Answers

Answer:

option B

Step-by-step explanation:

-2(4 - 3x) + (5x - 2)=

-8+6x+5x-2= 11x -10

-8 + 6x + 5x - 2 and 11x-10 are the equivalent expressions of the given expression -2(4 - 3x) + (5x - 2)

What is Expression?

An expression is combination of variables, numbers and operators.

The given expression is -2(4 - 3x) + (5x - 2)

We have to find the equivalent expression

x is the variable in the expression

Equivalent expressions are expressions that work the same even though they look different.

Let us apply distributive property

-8+6x+5x-2

Combine the like terms

11x-10

Hence, -8 + 6x + 5x - 2 and 11x-10 are the equivalent expressions of the given expression -2(4 - 3x) + (5x - 2)

To learn more on Expressions click:

https://brainly.com/question/14083225

#SPJ2

1.2+3x6=
2.4(8-3)=
3.7+8(3+2)=
4. (6-5)+(8x10)=

Answers

Answer:

1.2 + 3x6 = 19.2

2.4(8-3) = 11.25

3.7 + 8 (3 + 2) = 43.7

4(6 - 5) + (8 x 10) = 84

Hope this helps!

Have a great day

Answer:

Step-by-step explanat ez

A poster is shown below:

A rectangle is shown. The length of the rectangle is labeled 10 feet. The width of the rectangle is labeled 4 feet.

What are the dimensions if the poster is enlarged by a factor of three over two?

1. 12 ft by 30 ft
2. 2 ft by 5 ft
3. 6 ft by 15 ft
4. 5 ft by 12 ft

Answers

Answer: 3

Step-by-step explanation:

3/2 equals 1.5

Multiply 10 by 1.5 and 4 by 1.5

Instead of 10 by 4 you get 15 by 6

answer is 3. 6ft by 15 ft

ASAP plz fyi for the back side you can use brainly its easy but i have allat more work to do plz ill make u brainliest!!

Answers

Answer:

Is on the picture

Step-by-step explanation:

And this too

Find the area of the figure and type your result in the empty box.

Answers

Answer:

24

Step-by-step explanation:

4 x 2 = 8

8 x 3 = 24

24 area

9(2x + 15) = 45
Can you help me?

Answers

Answer:

= -5

Step-by-step explanation:

First you would use distributive property and multiply the 9 and 2 (18x) then 9 and 15 (135)
Now you have 18x+135=45 so you need to get X alone by using inverse operations and subtract 135-45 (90)
18x=90 now you divide 18 and 90 and your answer is x=5

The measure of an angle is 60.6°. What is the measure of its supplementary angle?

Answers

Answer:

119.4°

Step-by-step explanation:

The answer is 119.4° because supplementary means that the angles add to 180°, and since 180-60.6 is 119.4, that is the answer.  

Sorry if I'm wrong but I hope this helps!  Have a great day/night!

Answer:

119.4 and the little degree sign (119.4 degrees)

Step-by-step explanation:

Supplementary angles add up to equal 180 degrees.

180-60.6=119.4 degrees

Please answer this question. Your explanation does not need to have that much effort put into it. This is a 10 point question.

Answers

Answer:

B and C

Step-by-step explanation:

3 2/5 times 7 = 23 4/5

3 2/5 times 10 = 34

The rest of the answers are incorrect

Answer:

Step-by-step explanation:

3⅖ = 3.4

4 days × 3.4 miles/day = 13.6 miles = 13⅗ miles

7 days × 3.4 miles/day = 23.8 miles = 23⅘ miles

19 days × 3.4 miles/day = 64.6 miles = 64⅗ miles

31 days × 3.4 miles/day = 105.4 miles = 105⅖ miles

Find the zeros of the functions
f(x)=-x^2+25

Answers

The answer is 5!!!!!!!!!!!
The correct answer is 5 as shown in the picture above/below
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